38949021748 has 48 divisors (see below), whose sum is σ = 83906690560. Its totient is φ = 15405375744.

The previous prime is 38949021707. The next prime is 38949021751. The reversal of 38949021748 is 84712094983.

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, 3132568 + ... + 3144976.

Almost surely, 2^38949021748 is an apocalyptic number.

It is an amenable number.

38949021748 is an abundant number, since it is smaller than the sum of its proper divisors (44957668812).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38949021748 is a wasteful number, since it uses less digits than its factorization.

38949021748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21056 (or 21054 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 55.

The spelling of 38949021748 in words is "thirty-eight billion, nine hundred forty-nine million, twenty-one thousand, seven hundred forty-eight".