30776031388 has 6 divisors (see below), whose sum is σ = 53858054936. Its totient is φ = 15388015692.

The previous prime is 30776031353. The next prime is 30776031487. The reversal of 30776031388 is 88313067703.

It is a super-2 number, since 2×30776031388² (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 as a sum of consecutive naturals, namely, 3847003920 + ... + 3847003927.

Almost surely, 2^30776031388 is an apocalyptic number.

It is an amenable number.

30776031388 is a deficient number, since it is larger than the sum of its proper divisors (23082023548).

30776031388 is a wasteful number, since it uses less digits than its factorization.

30776031388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7694007851 (or 7694007849 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 46.

The spelling of 30776031388 in words is "thirty billion, seven hundred seventy-six million, thirty-one thousand, three hundred eighty-eight".