38977515513 has 24 divisors (see below), whose sum is σ = 57454488000. Its totient is φ = 25454126880.

The previous prime is 38977515491. The next prime is 38977515539. The reversal of 38977515513 is 31551577983.

It is a happy number.

38977515513 is a `hidden beast` number, since 3 + 8 + 9 + 77 + 51 + 5 + 513 = 666.

It is not a de Polignac number, because 38977515513 - 2⁶ = 38977515449 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 38977515513.

It is not an unprimeable number, because it can be changed into a prime (38977515583) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 236238 + ... + 365736.

It is an arithmetic number, because the mean of its divisors is an integer number (2393937000).

Almost surely, 2^38977515513 is an apocalyptic number.

It is an amenable number.

38977515513 is a deficient number, since it is larger than the sum of its proper divisors (18476972487).

38977515513 is a wasteful number, since it uses less digits than its factorization.

38977515513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130189 (or 130186 counting only the distinct ones).

The product of its digits is 3969000, while the sum is 54.

The spelling of 38977515513 in words is "thirty-eight billion, nine hundred seventy-seven million, five hundred fifteen thousand, five hundred thirteen".