38399267776 has 56 divisors (see below), whose sum is σ = 78306946256. Its totient is φ = 18669035520.

The previous prime is 38399267743. The next prime is 38399267801. The reversal of 38399267776 is 67776299383.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4701136 + ... + 4709296.

It is an arithmetic number, because the mean of its divisors is an integer number (1398338326).

Almost surely, 2^38399267776 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 38399267776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39153473128).

38399267776 is an abundant number, since it is smaller than the sum of its proper divisors (39907678480).

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

38399267776 is a wasteful number, since it uses less digits than its factorization.

38399267776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10197 (or 10187 counting only the distinct ones).

The product of its digits is 144027072, while the sum is 67.

The spelling of 38399267776 in words is "thirty-eight billion, three hundred ninety-nine million, two hundred sixty-seven thousand, seven hundred seventy-six".