38742799544 has 8 divisors (see below), whose sum is σ = 72642749160. Its totient is φ = 19371399768.

The previous prime is 38742799523. The next prime is 38742799597. The reversal of 38742799544 is 44599724783.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2421424964 + ... + 2421424979.

It is an arithmetic number, because the mean of its divisors is an integer number (9080343645).

Almost surely, 2^38742799544 is an apocalyptic number.

It is an amenable number.

38742799544 is a deficient number, since it is larger than the sum of its proper divisors (33899949616).

38742799544 is a wasteful number, since it uses less digits than its factorization.

38742799544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4842849949 (or 4842849945 counting only the distinct ones).

The product of its digits is 60963840, while the sum is 62.

The spelling of 38742799544 in words is "thirty-eight billion, seven hundred forty-two million, seven hundred ninety-nine thousand, five hundred forty-four".