30972458634 has 96 divisors (see below), whose sum is σ = 69240407040. Its totient is φ = 9227439936.

The previous prime is 30972458563. The next prime is 30972458653. The reversal of 30972458634 is 43685427903.

It is a super-2 number, since 2×30972458634² (a number of 22 digits) contains 22 as substring.

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 47 ways as a sum of consecutive naturals, for example, 4004479 + ... + 4012205.

It is an arithmetic number, because the mean of its divisors is an integer number (721254240).

Almost surely, 2^30972458634 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30972458634, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34620203520).

30972458634 is an abundant number, since it is smaller than the sum of its proper divisors (38267948406).

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

30972458634 is a wasteful number, since it uses less digits than its factorization.

30972458634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7884 (or 7871 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 51.

The spelling of 30972458634 in words is "thirty billion, nine hundred seventy-two million, four hundred fifty-eight thousand, six hundred thirty-four".