30185760138 has 32 divisors (see below), whose sum is σ = 62767380480. Its totient is φ = 9667280880.

The previous prime is 30185760113. The next prime is 30185760151. The reversal of 30185760138 is 83106758103.

It is a super-2 number, since 2×30185760138² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30185760138.

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, 557920 + ... + 609627.

It is an arithmetic number, because the mean of its divisors is an integer number (1961480640).

Almost surely, 2^30185760138 is an apocalyptic number.

30185760138 is an abundant number, since it is smaller than the sum of its proper divisors (32581620342).

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

30185760138 is a wasteful number, since it uses less digits than its factorization.

30185760138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1167722.

The product of its (nonzero) digits is 120960, while the sum is 42.

The spelling of 30185760138 in words is "thirty billion, one hundred eighty-five million, seven hundred sixty thousand, one hundred thirty-eight".