38702812565 has 32 divisors (see below), whose sum is σ = 49247099520. Its totient is φ = 29117885184.

The previous prime is 38702812553. The next prime is 38702812571. The reversal of 38702812565 is 56521820783.

It is a cyclic number.

It is not a de Polignac number, because 38702812565 - 2¹⁶ = 38702747029 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7444547 + ... + 7449743.

It is an arithmetic number, because the mean of its divisors is an integer number (1538971860).

Almost surely, 2^38702812565 is an apocalyptic number.

It is an amenable number.

38702812565 is a deficient number, since it is larger than the sum of its proper divisors (10544286955).

38702812565 is a wasteful number, since it uses less digits than its factorization.

38702812565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5781.

The product of its (nonzero) digits is 806400, while the sum is 47.

The spelling of 38702812565 in words is "thirty-eight billion, seven hundred two million, eight hundred twelve thousand, five hundred sixty-five".