30478137860 has 48 divisors (see below), whose sum is σ = 65017753920. Its totient is φ = 11998504320.

The previous prime is 30478137857. The next prime is 30478137901. The reversal of 30478137860 is 6873187403.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1572911 + ... + 1592169.

It is an arithmetic number, because the mean of its divisors is an integer number (1354536540).

Almost surely, 2^30478137860 is an apocalyptic number.

It is an amenable number.

30478137860 is an abundant number, since it is smaller than the sum of its proper divisors (34539616060).

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

30478137860 is a wasteful number, since it uses less digits than its factorization.

30478137860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20516 (or 20514 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 47.

The spelling of 30478137860 in words is "thirty billion, four hundred seventy-eight million, one hundred thirty-seven thousand, eight hundred sixty".