38788517887 has 16 divisors (see below), whose sum is σ = 44533428544. Its totient is φ = 33094656000.

The previous prime is 38788517881. The next prime is 38788517893. The reversal of 38788517887 is 78871588783.

It is an interprime number because it is at equal distance from previous prime (38788517881) and next prime (38788517893).

It is not a de Polignac number, because 38788517887 - 2⁷ = 38788517759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38788517881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5666587 + ... + 5673427.

It is an arithmetic number, because the mean of its divisors is an integer number (2783339284).

Almost surely, 2^38788517887 is an apocalyptic number.

38788517887 is a deficient number, since it is larger than the sum of its proper divisors (5744910657).

38788517887 is a wasteful number, since it uses less digits than its factorization.

38788517887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10450.

The product of its digits is 168591360, while the sum is 70.

The spelling of 38788517887 in words is "thirty-eight billion, seven hundred eighty-eight million, five hundred seventeen thousand, eight hundred eighty-seven".