30877768512 has 56 divisors (see below), whose sum is σ = 90774926400. Its totient is φ = 10292588928.

The previous prime is 30877768507. The next prime is 30877768513. The reversal of 30877768512 is 21586777803.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30877768513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8932812 + ... + 8936267.

Almost surely, 2^30877768512 is an apocalyptic number.

30877768512 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

30877768512 is an abundant number, since it is smaller than the sum of its proper divisors (59897157888).

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

30877768512 is a wasteful number, since it uses less digits than its factorization.

30877768512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17869100 (or 17869084 counting only the distinct ones).

The product of its (nonzero) digits is 3951360, while the sum is 54.

The spelling of 30877768512 in words is "thirty billion, eight hundred seventy-seven million, seven hundred sixty-eight thousand, five hundred twelve".