38797049856 has 76 divisors (see below), whose sum is σ = 103460699432. Its totient is φ = 12932087808.

The previous prime is 38797049831. The next prime is 38797049873. The reversal of 38797049856 is 65894079783.

It is a super-2 number, since 2×38797049856² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 761766 + ... + 811098.

Almost surely, 2^38797049856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38797049856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51730349716).

38797049856 is an abundant number, since it is smaller than the sum of its proper divisors (64663649576).

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

38797049856 is an frugal number, since it uses more digits than its factorization.

38797049856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49372 (or 49338 counting only the distinct ones).

The product of its (nonzero) digits is 91445760, while the sum is 66.

The spelling of 38797049856 in words is "thirty-eight billion, seven hundred ninety-seven million, forty-nine thousand, eight hundred fifty-six".