38777011857 has 24 divisors (see below), whose sum is σ = 58233782880. Its totient is φ = 24844374720.

The previous prime is 38777011817. The next prime is 38777011879. The reversal of 38777011857 is 75811077783.

It is not a de Polignac number, because 38777011857 - 2¹⁵ = 38776979089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38777011817) 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, 759507 + ... + 808952.

It is an arithmetic number, because the mean of its divisors is an integer number (2426407620).

Almost surely, 2^38777011857 is an apocalyptic number.

It is an amenable number.

38777011857 is a deficient number, since it is larger than the sum of its proper divisors (19456771023).

38777011857 is a wasteful number, since it uses less digits than its factorization.

38777011857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1568573 (or 1568570 counting only the distinct ones).

The product of its (nonzero) digits is 2304960, while the sum is 54.

The spelling of 38777011857 in words is "thirty-eight billion, seven hundred seventy-seven million, eleven thousand, eight hundred fifty-seven".