38966938977 has 32 divisors (see below), whose sum is σ = 56067327360. Its totient is φ = 23985331200.

The previous prime is 38966938931. The next prime is 38966938991. The reversal of 38966938977 is 77983966983.

It is not a de Polignac number, because 38966938977 - 2⁷ = 38966938849 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38966938899 and 38966938908.

It is not an unprimeable number, because it can be changed into a prime (38966933977) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 526758 + ... + 596160.

It is an arithmetic number, because the mean of its divisors is an integer number (1752103980).

Almost surely, 2^38966938977 is an apocalyptic number.

It is an amenable number.

38966938977 is a deficient number, since it is larger than the sum of its proper divisors (17100388383).

38966938977 is a wasteful number, since it uses less digits than its factorization.

38966938977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69633.

The product of its digits is 740710656, while the sum is 75.

The spelling of 38966938977 in words is "thirty-eight billion, nine hundred sixty-six million, nine hundred thirty-eight thousand, nine hundred seventy-seven".