30138508994 has 16 divisors (see below), whose sum is σ = 50464481760. Its totient is φ = 13380732960.

The previous prime is 30138508993. The next prime is 30138509003. The reversal of 30138508994 is 49980583103.

It is not an unprimeable number, because it can be changed into a prime (30138508993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15928499 + ... + 15930390.

It is an arithmetic number, because the mean of its divisors is an integer number (3154030110).

Almost surely, 2^30138508994 is an apocalyptic number.

30138508994 is a deficient number, since it is larger than the sum of its proper divisors (20325972766).

30138508994 is a wasteful number, since it uses less digits than its factorization.

30138508994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31858945.

The product of its (nonzero) digits is 933120, while the sum is 50.

The spelling of 30138508994 in words is "thirty billion, one hundred thirty-eight million, five hundred eight thousand, nine hundred ninety-four".