8456294681 has 2 divisors, whose sum is σ = 8456294682. Its totient is φ = 8456294680.

The previous prime is 8456294659. The next prime is 8456294713. The reversal of 8456294681 is 1864926548.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5518112656 + 2938182025 = 74284^2 + 54205^2 .

It is a cyclic number.

It is not a de Polignac number, because 8456294681 - 2²⁶ = 8389185817 is a prime.

It is a super-2 number, since 2×8456294681² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8456294381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4228147340 + 4228147341.

It is an arithmetic number, because the mean of its divisors is an integer number (4228147341).

Almost surely, 2^8456294681 is an apocalyptic number.

It is an amenable number.

8456294681 is a deficient number, since it is larger than the sum of its proper divisors (1).

8456294681 is an equidigital number, since it uses as much as digits as its factorization.

8456294681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3317760, while the sum is 53.

The square root of 8456294681 is about 91958.1137311983. The cubic root of 8456294681 is about 2037.3236948128.

The spelling of 8456294681 in words is "eight billion, four hundred fifty-six million, two hundred ninety-four thousand, six hundred eighty-one".