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10091858566931 is a prime number
BaseRepresentation
bin1001001011011011000110…
…1001010001111100010011
31022201202211222022221110222
42102312301221101330103
52310321111243120211
633244045200543255
72061053443313321
oct222666151217423
938652758287428
1010091858566931
113240a2a080a39
12116ba53021b2b
1358287303543b
1426c63cbcad11
151277a45461db
hex92db1a51f13

10091858566931 has 2 divisors, whose sum is σ = 10091858566932. Its totient is φ = 10091858566930.

The previous prime is 10091858566879. The next prime is 10091858567009. The reversal of 10091858566931 is 13966585819001.

10091858566931 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (13966585819001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10091858566931 - 214 = 10091858550547 is a prime.

It is a super-2 number, since 2×100918585669312 (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10091858562931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5045929283465 + 5045929283466.

It is an arithmetic number, because the mean of its divisors is an integer number (5045929283466).

Almost surely, 210091858566931 is an apocalyptic number.

10091858566931 is a deficient number, since it is larger than the sum of its proper divisors (1).

10091858566931 is an equidigital number, since it uses as much as digits as its factorization.

10091858566931 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13996800, while the sum is 62.

The spelling of 10091858566931 in words is "ten trillion, ninety-one billion, eight hundred fifty-eight million, five hundred sixty-six thousand, nine hundred thirty-one".