38605494864 has 80 divisors (see below), whose sum is σ = 103280246784. Its totient is φ = 12413193600.

The previous prime is 38605494841. The next prime is 38605494877. The reversal of 38605494864 is 46849450683.

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, 421057 + ... + 504479.

Almost surely, 2^38605494864 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 38605494864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51640123392).

38605494864 is an abundant number, since it is smaller than the sum of its proper divisors (64674751920).

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

38605494864 is a wasteful number, since it uses less digits than its factorization.

38605494864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83776 (or 83770 counting only the distinct ones).

The product of its (nonzero) digits is 19906560, while the sum is 57.

The spelling of 38605494864 in words is "thirty-eight billion, six hundred five million, four hundred ninety-four thousand, eight hundred sixty-four".