38145877218 has 48 divisors (see below), whose sum is σ = 83827238040. Its totient is φ = 12534939648.

The previous prime is 38145877139. The next prime is 38145877219. The reversal of 38145877218 is 81277854183.

38145877218 is a `hidden beast` number, since 38 + 1 + 4 + 587 + 7 + 21 + 8 = 666.

38145877218 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 32293168209 + 5852709009 = 179703^2 + 76503^2 .

It is not an unprimeable number, because it can be changed into a prime (38145877219) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 504546 + ... + 575202.

Almost surely, 2^38145877218 is an apocalyptic number.

38145877218 is an abundant number, since it is smaller than the sum of its proper divisors (45681360822).

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

38145877218 is a wasteful number, since it uses less digits than its factorization.

38145877218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71091 (or 71088 counting only the distinct ones).

The product of its digits is 3010560, while the sum is 54.

The spelling of 38145877218 in words is "thirty-eight billion, one hundred forty-five million, eight hundred seventy-seven thousand, two hundred eighteen".