30725578130 has 32 divisors (see below), whose sum is σ = 59568191424. Its totient is φ = 11343335616.

The previous prime is 30725578087. The next prime is 30725578207. The reversal of 30725578130 is 3187552703.

It is a super-2 number, since 2×30725578130² (a number of 22 digits) contains 22 as substring.

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, 1705349 + ... + 1723271.

It is an arithmetic number, because the mean of its divisors is an integer number (1861505982).

Almost surely, 2^30725578130 is an apocalyptic number.

30725578130 is a deficient number, since it is larger than the sum of its proper divisors (28842613294).

30725578130 is a wasteful number, since it uses less digits than its factorization.

30725578130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31130.

The product of its (nonzero) digits is 176400, while the sum is 41.

The spelling of 30725578130 in words is "thirty billion, seven hundred twenty-five million, five hundred seventy-eight thousand, one hundred thirty".