85860802631 has 2 divisors, whose sum is σ = 85860802632. Its totient is φ = 85860802630.

The previous prime is 85860802523. The next prime is 85860802663. The reversal of 85860802631 is 13620806858.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85860802631 - 2¹⁴ = 85860786247 is a prime.

It is a super-2 number, since 2×85860802631² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85860802691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42930401315 + 42930401316.

It is an arithmetic number, because the mean of its divisors is an integer number (42930401316).

Almost surely, 2^85860802631 is an apocalyptic number.

85860802631 is a deficient number, since it is larger than the sum of its proper divisors (1).

85860802631 is an equidigital number, since it uses as much as digits as its factorization.

85860802631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 552960, while the sum is 47.

The spelling of 85860802631 in words is "eighty-five billion, eight hundred sixty million, eight hundred two thousand, six hundred thirty-one".