75442039922 has 18 divisors (see below), whose sum is σ = 113689301229. Its totient is φ = 37546417080.

The previous prime is 75442039913. The next prime is 75442039951. The reversal of 75442039922 is 22993024457.

It can be written as a sum of positive squares in 2 ways, for example, as 74637693601 + 804346321 = 273199^2 + 28361^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=194219.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 139448972 + ... + 139449512.

Almost surely, 2^75442039922 is an apocalyptic number.

75442039922 is a deficient number, since it is larger than the sum of its proper divisors (38247261307).

75442039922 is an frugal number, since it uses more digits than its factorization.

75442039922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1802 (or 902 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 47.

The spelling of 75442039922 in words is "seventy-five billion, four hundred forty-two million, thirty-nine thousand, nine hundred twenty-two".