38082786993 has 6 divisors (see below), whose sum is σ = 55008470114. Its totient is φ = 25388524656.

The previous prime is 38082786953. The next prime is 38082787007. The reversal of 38082786993 is 39968728083.

It can be written as a sum of positive squares in only one way, i.e., 37740055824 + 342731169 = 194268^2 + 18513^2 .

It is not a de Polignac number, because 38082786993 - 2²⁰ = 38081738417 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38082786993.

It is not an unprimeable number, because it can be changed into a prime (38082786943) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2115710380 + ... + 2115710397.

Almost surely, 2^38082786993 is an apocalyptic number.

It is an amenable number.

38082786993 is a deficient number, since it is larger than the sum of its proper divisors (16925683121).

38082786993 is a wasteful number, since it uses less digits than its factorization.

38082786993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4231420783 (or 4231420780 counting only the distinct ones).

The product of its (nonzero) digits is 31352832, while the sum is 63.

The spelling of 38082786993 in words is "thirty-eight billion, eighty-two million, seven hundred eighty-six thousand, nine hundred ninety-three".