30136986650 has 12 divisors (see below), whose sum is σ = 56054795262. Its totient is φ = 12054794640.

The previous prime is 30136986637. The next prime is 30136986697. The reversal of 30136986650 is 5668963103.

It can be written as a sum of positive squares in 3 ways, for example, as 11707023601 + 18429963049 = 108199^2 + 135757^2 .

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 30136986595 and 30136986604.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 301369817 + ... + 301369916.

Almost surely, 2^30136986650 is an apocalyptic number.

30136986650 is a deficient number, since it is larger than the sum of its proper divisors (25917808612).

30136986650 is a wasteful number, since it uses less digits than its factorization.

30136986650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602739745 (or 602739740 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 47.

The spelling of 30136986650 in words is "thirty billion, one hundred thirty-six million, nine hundred eighty-six thousand, six hundred fifty".