38432672258 has 18 divisors (see below), whose sum is σ = 58550582601. Its totient is φ = 18920376024.

The previous prime is 38432672183. The next prime is 38432672261. The reversal of 38432672258 is 85227623483.

It can be written as a sum of positive squares in 2 ways, for example, as 33187001929 + 5245670329 = 182173^2 + 72427^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=138623.

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, 18574448 + ... + 18576516.

Almost surely, 2^38432672258 is an apocalyptic number.

38432672258 is a deficient number, since it is larger than the sum of its proper divisors (20117910343).

38432672258 is an frugal number, since it uses more digits than its factorization.

38432672258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4274 (or 2138 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 50.

Multiplying 38432672258 by its sum of digits (50), we get a square (1921633612900 = 1386230²).

The spelling of 38432672258 in words is "thirty-eight billion, four hundred thirty-two million, six hundred seventy-two thousand, two hundred fifty-eight".