38892779793 has 48 divisors (see below), whose sum is σ = 66100869120. Its totient is φ = 21574177632.

The previous prime is 38892779767. The next prime is 38892779797. The reversal of 38892779793 is 39797729883.

38892779793 is a `hidden beast` number, since 388 + 9 + 2 + 77 + 97 + 93 = 666.

It is not a de Polignac number, because 38892779793 - 2²¹ = 38890682641 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (38892779797) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 397528 + ... + 485606.

It is an arithmetic number, because the mean of its divisors is an integer number (1377101440).

Almost surely, 2^38892779793 is an apocalyptic number.

It is an amenable number.

38892779793 is a deficient number, since it is larger than the sum of its proper divisors (27208089327).

38892779793 is a wasteful number, since it uses less digits than its factorization.

38892779793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88298 (or 88295 counting only the distinct ones).

The product of its digits is 288054144, while the sum is 72.

The spelling of 38892779793 in words is "thirty-eight billion, eight hundred ninety-two million, seven hundred seventy-nine thousand, seven hundred ninety-three".