30678204136 has 8 divisors (see below), whose sum is σ = 57521632770. Its totient is φ = 15339102064.

The previous prime is 30678204127. The next prime is 30678204143. The reversal of 30678204136 is 63140287603.

It can be written as a sum of positive squares in only one way, i.e., 28227360100 + 2450844036 = 168010^2 + 49506^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1917387751 + ... + 1917387766.

Almost surely, 2^30678204136 is an apocalyptic number.

It is an amenable number.

30678204136 is a deficient number, since it is larger than the sum of its proper divisors (26843428634).

30678204136 is a wasteful number, since it uses less digits than its factorization.

30678204136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3834775523 (or 3834775519 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 40.

The spelling of 30678204136 in words is "thirty billion, six hundred seventy-eight million, two hundred four thousand, one hundred thirty-six".