38998711645 has 16 divisors (see below), whose sum is σ = 47126080512. Its totient is φ = 30981254400.

The previous prime is 38998711627. The next prime is 38998711651. The reversal of 38998711645 is 54611789983.

It is not a de Polignac number, because 38998711645 - 2⁹ = 38998711133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 403504 + ... + 490726.

It is an arithmetic number, because the mean of its divisors is an integer number (2945380032).

Almost surely, 2^38998711645 is an apocalyptic number.

It is an amenable number.

38998711645 is a deficient number, since it is larger than the sum of its proper divisors (8127368867).

38998711645 is a wasteful number, since it uses less digits than its factorization.

38998711645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87852.

The product of its digits is 13063680, while the sum is 61.

The spelling of 38998711645 in words is "thirty-eight billion, nine hundred ninety-eight million, seven hundred eleven thousand, six hundred forty-five".