38538538722 has 32 divisors (see below), whose sum is σ = 90678916800. Its totient is φ = 12090521664.

The previous prime is 38538538711. The next prime is 38538538751. The reversal of 38538538722 is 22783583583.

It is a happy number.

38538538722 is a `hidden beast` number, since 3 + 8 + 5 + 38 + 538 + 72 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20989572 + ... + 20991407.

It is an arithmetic number, because the mean of its divisors is an integer number (2833716150).

Almost surely, 2^38538538722 is an apocalyptic number.

38538538722 is an abundant number, since it is smaller than the sum of its proper divisors (52140378078).

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

38538538722 is a wasteful number, since it uses less digits than its factorization.

38538538722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41981007 (or 41981001 counting only the distinct ones).

The product of its digits is 9676800, while the sum is 54.

The spelling of 38538538722 in words is "thirty-eight billion, five hundred thirty-eight million, five hundred thirty-eight thousand, seven hundred twenty-two".