38941451864 has 64 divisors (see below), whose sum is σ = 85747334400. Its totient is φ = 16229407104.

The previous prime is 38941451851. The next prime is 38941451873. The reversal of 38941451864 is 46815414983.

It is a happy 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, 5091227 + ... + 5098869.

It is an arithmetic number, because the mean of its divisors is an integer number (1339802100).

Almost surely, 2^38941451864 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 38941451864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42873667200).

38941451864 is an abundant number, since it is smaller than the sum of its proper divisors (46805882536).

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

38941451864 is a wasteful number, since it uses less digits than its factorization.

38941451864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10152 (or 10148 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 53.

The spelling of 38941451864 in words is "thirty-eight billion, nine hundred forty-one million, four hundred fifty-one thousand, eight hundred sixty-four".