30015987372 has 144 divisors (see below), whose sum is σ = 94476229120. Its totient is φ = 8071467264.

The previous prime is 30015987349. The next prime is 30015987383. The reversal of 30015987372 is 27378951003.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 149793 + ... + 287175.

Almost surely, 2^30015987372 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30015987372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47238114560).

30015987372 is an abundant number, since it is smaller than the sum of its proper divisors (64460241748).

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

30015987372 is a wasteful number, since it uses less digits than its factorization.

30015987372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137437 (or 137412 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The spelling of 30015987372 in words is "thirty billion, fifteen million, nine hundred eighty-seven thousand, three hundred seventy-two".