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7875896081 is a prime number
BaseRepresentation
bin1110101010111000…
…01010001100010001
3202022212212222022212
413111130022030101
5112112212133311
63341303441505
7366113004104
oct72534121421
922285788285
107875896081
113381813329
121639756295
13986910251
1454a00073b
15311683c8b
hex1d570a311

7875896081 has 2 divisors, whose sum is σ = 7875896082. Its totient is φ = 7875896080.

The previous prime is 7875895999. The next prime is 7875896113. The reversal of 7875896081 is 1806985787.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5407396225 + 2468499856 = 73535^2 + 49684^2 .

It is an emirp because it is prime and its reverse (1806985787) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7875896081 - 210 = 7875895057 is a prime.

It is a super-2 number, since 2×78758960812 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7875896081.

It is not a weakly prime, because it can be changed into another prime (7875896881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3937948040 + 3937948041.

It is an arithmetic number, because the mean of its divisors is an integer number (3937948041).

Almost surely, 27875896081 is an apocalyptic number.

It is an amenable number.

7875896081 is a deficient number, since it is larger than the sum of its proper divisors (1).

7875896081 is an equidigital number, since it uses as much as digits as its factorization.

7875896081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6773760, while the sum is 59.

The square root of 7875896081 is about 88746.2454473427. The cubic root of 7875896081 is about 1989.6040626219.

The spelling of 7875896081 in words is "seven billion, eight hundred seventy-five million, eight hundred ninety-six thousand, eighty-one".