38212172544 has 432 divisors, whose sum is σ = 134142650880. Its totient is φ = 9545195520.

The previous prime is 38212172521. The next prime is 38212172689. The reversal of 38212172544 is 44527121283.

It is a happy number.

38212172544 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 (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9293049 + ... + 9297159.

Almost surely, 2^38212172544 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 38212172544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67071325440).

38212172544 is an abundant number, since it is smaller than the sum of its proper divisors (95930478336).

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

38212172544 is a wasteful number, since it uses less digits than its factorization.

38212172544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4176 (or 4155 counting only the distinct ones).

The product of its digits is 107520, while the sum is 39.

The spelling of 38212172544 in words is "thirty-eight billion, two hundred twelve million, one hundred seventy-two thousand, five hundred forty-four".