10856941517 has 2 divisors, whose sum is σ = 10856941518. Its totient is φ = 10856941516.

The previous prime is 10856941493. The next prime is 10856941547. The reversal of 10856941517 is 71514965801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10021211236 + 835730281 = 100106^2 + 28909^2 .

It is a cyclic number.

It is not a de Polignac number, because 10856941517 - 2⁸ = 10856941261 is a prime.

It is a super-2 number, since 2×10856941517² (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 (10856941547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5428470758 + 5428470759.

It is an arithmetic number, because the mean of its divisors is an integer number (5428470759).

Almost surely, 2^10856941517 is an apocalyptic number.

It is an amenable number.

10856941517 is a deficient number, since it is larger than the sum of its proper divisors (1).

10856941517 is an equidigital number, since it uses as much as digits as its factorization.

10856941517 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 302400, while the sum is 47.

The spelling of 10856941517 in words is "ten billion, eight hundred fifty-six million, nine hundred forty-one thousand, five hundred seventeen".