30512097774 has 24 divisors (see below), whose sum is σ = 67356897192. Its totient is φ = 9978798960.

The previous prime is 30512097761. The next prime is 30512097809. The reversal of 30512097774 is 47779021503.

30512097774 is a `hidden beast` number, since 305 + 1 + 209 + 77 + 74 = 666.

It is a super-2 number, since 2×30512097774² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15990712 + ... + 15992619.

It is an arithmetic number, because the mean of its divisors is an integer number (2806537383).

Almost surely, 2^30512097774 is an apocalyptic number.

30512097774 is an abundant number, since it is smaller than the sum of its proper divisors (36844799418).

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

30512097774 is a wasteful number, since it uses less digits than its factorization.

30512097774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31983392 (or 31983389 counting only the distinct ones).

The product of its (nonzero) digits is 370440, while the sum is 45.

The spelling of 30512097774 in words is "thirty billion, five hundred twelve million, ninety-seven thousand, seven hundred seventy-four".