30856497258 has 32 divisors (see below), whose sum is σ = 65431276416. Its totient is φ = 9667417088.

The previous prime is 30856497247. The next prime is 30856497307. The reversal of 30856497258 is 85279465803.

It is a junction number, because it is equal to n+sod(n) for n = 30856497198 and 30856497207.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127791 + ... + 279362.

It is an arithmetic number, because the mean of its divisors is an integer number (2044727388).

Almost surely, 2^30856497258 is an apocalyptic number.

30856497258 is an abundant number, since it is smaller than the sum of its proper divisors (34574779158).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30856497258 is a wasteful number, since it uses less digits than its factorization.

30856497258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407918.

The product of its (nonzero) digits is 14515200, while the sum is 57.

The spelling of 30856497258 in words is "thirty billion, eight hundred fifty-six million, four hundred ninety-seven thousand, two hundred fifty-eight".