38138248722 has 32 divisors (see below), whose sum is σ = 87186465792. Its totient is φ = 10894976784.

The previous prime is 38138248703. The next prime is 38138248739. The reversal of 38138248722 is 22784283183.

38138248722 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 2×38138248722² (a number of 22 digits) contains 22 as substring.

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, 223123 + ... + 355049.

It is an arithmetic number, because the mean of its divisors is an integer number (2724577056).

Almost surely, 2^38138248722 is an apocalyptic number.

38138248722 is an abundant number, since it is smaller than the sum of its proper divisors (49048217070).

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

38138248722 is a wasteful number, since it uses less digits than its factorization.

38138248722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138822.

The product of its digits is 1032192, while the sum is 48.

The spelling of 38138248722 in words is "thirty-eight billion, one hundred thirty-eight million, two hundred forty-eight thousand, seven hundred twenty-two".