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10870955989 is a prime number
BaseRepresentation
bin10100001111111010…
…11001111111010101
31001001121121210010121
422013331121333111
5134230431042424
64554414151541
7533251413145
oct120775317725
931047553117
1010870955989
11467940a153
1221347b25b1
13104328504a
14751abc925
1543959dee4
hex287f59fd5

10870955989 has 2 divisors, whose sum is σ = 10870955990. Its totient is φ = 10870955988.

The previous prime is 10870955939. The next prime is 10870956053. The reversal of 10870955989 is 98955907801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10797288100 + 73667889 = 103910^2 + 8583^2 .

It is a cyclic number.

It is not a de Polignac number, because 10870955989 - 211 = 10870953941 is a prime.

It is a super-2 number, since 2×108709559892 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10870955939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5435477994 + 5435477995.

It is an arithmetic number, because the mean of its divisors is an integer number (5435477995).

Almost surely, 210870955989 is an apocalyptic number.

It is an amenable number.

10870955989 is a deficient number, since it is larger than the sum of its proper divisors (1).

10870955989 is an equidigital number, since it uses as much as digits as its factorization.

10870955989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8164800, while the sum is 61.

The spelling of 10870955989 in words is "ten billion, eight hundred seventy million, nine hundred fifty-five thousand, nine hundred eighty-nine".