38355518372 has 12 divisors (see below), whose sum is σ = 67123704396. Its totient is φ = 19177317120.

The previous prime is 38355518363. The next prime is 38355518401. The reversal of 38355518372 is 27381555383.

It can be written as a sum of positive squares in 2 ways, for example, as 19809436516 + 18546081856 = 140746^2 + 136184^2 .

It is a super-2 number, since 2×38355518372² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 38355518372.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156248 + ... + 318000.

It is an arithmetic number, because the mean of its divisors is an integer number (5593642033).

Almost surely, 2^38355518372 is an apocalyptic number.

It is an amenable number.

38355518372 is a deficient number, since it is larger than the sum of its proper divisors (28768186024).

38355518372 is a wasteful number, since it uses less digits than its factorization.

38355518372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221038 (or 221036 counting only the distinct ones).

The product of its digits is 3024000, while the sum is 50.

The spelling of 38355518372 in words is "thirty-eight billion, three hundred fifty-five million, five hundred eighteen thousand, three hundred seventy-two".