38156272638 has 32 divisors (see below), whose sum is σ = 83481995520. Its totient is φ = 11530292160.

The previous prime is 38156272571. The next prime is 38156272673. The reversal of 38156272638 is 83627265183.

It is a happy number.

38156272638 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×38156272638² (a number of 22 digits) contains 22 as substring.

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, 781495 + ... + 828882.

It is an arithmetic number, because the mean of its divisors is an integer number (2608812360).

Almost surely, 2^38156272638 is an apocalyptic number.

38156272638 is an abundant number, since it is smaller than the sum of its proper divisors (45325722882).

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

38156272638 is a wasteful number, since it uses less digits than its factorization.

38156272638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1610752.

The product of its digits is 2903040, while the sum is 51.

The spelling of 38156272638 in words is "thirty-eight billion, one hundred fifty-six million, two hundred seventy-two thousand, six hundred thirty-eight".