30749452884 has 18 divisors (see below), whose sum is σ = 77727783770. Its totient is φ = 10249817616.

The previous prime is 30749452879. The next prime is 30749452897. The reversal of 30749452884 is 48825494703.

30749452884 is a `hidden beast` number, since 30 + 7 + 4 + 9 + 4 + 528 + 84 = 666.

It can be written as a sum of positive squares in only one way, i.e., 30716067600 + 33385284 = 175260^2 + 5778^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a self number, because there is not a number n which added to its sum of digits gives 30749452884.

It is a congruent number.

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, 427075699 + ... + 427075770.

Almost surely, 2^30749452884 is an apocalyptic number.

It is an amenable number.

30749452884 is an abundant number, since it is smaller than the sum of its proper divisors (46978330886).

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

30749452884 is a wasteful number, since it uses less digits than its factorization.

30749452884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 854151479 (or 854151474 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 54.

The spelling of 30749452884 in words is "thirty billion, seven hundred forty-nine million, four hundred fifty-two thousand, eight hundred eighty-four".