30872408472 has 64 divisors (see below), whose sum is σ = 87036681600. Its totient is φ = 10137204000.

The previous prime is 30872408453. The next prime is 30872408473. The reversal of 30872408472 is 27480427803.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30872408473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1052154 + ... + 1081097.

It is an arithmetic number, because the mean of its divisors is an integer number (1359948150).

Almost surely, 2^30872408472 is an apocalyptic number.

It is an amenable number.

30872408472 is an abundant number, since it is smaller than the sum of its proper divisors (56164273128).

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

30872408472 is a wasteful number, since it uses less digits than its factorization.

30872408472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2133333 (or 2133323 counting only the distinct ones).

The product of its (nonzero) digits is 602112, while the sum is 45.

The spelling of 30872408472 in words is "thirty billion, eight hundred seventy-two million, four hundred eight thousand, four hundred seventy-two".