38641771392 has 256 divisors, whose sum is σ = 124612992000. Its totient is φ = 10357014528.

The previous prime is 38641771381. The next prime is 38641771411. The reversal of 38641771392 is 29317714683.

It is a happy number.

38641771392 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15946693 + ... + 15949115.

It is an arithmetic number, because the mean of its divisors is an integer number (486769500).

Almost surely, 2^38641771392 is an apocalyptic number.

38641771392 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38641771392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62306496000).

38641771392 is an abundant number, since it is smaller than the sum of its proper divisors (85971220608).

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

38641771392 is a wasteful number, since it uses less digits than its factorization.

38641771392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2813 (or 2801 counting only the distinct ones).

The product of its digits is 1524096, while the sum is 51.

The spelling of 38641771392 in words is "thirty-eight billion, six hundred forty-one million, seven hundred seventy-one thousand, three hundred ninety-two".