162293857538 has 18 divisors (see below), whose sum is σ = 250230592521. Its totient is φ = 78943513464.

The previous prime is 162293857519. The next prime is 162293857541. The reversal of 162293857538 is 835758392261.

It can be written as a sum of positive squares in 2 ways, for example, as 130937593609 + 31356263929 = 361853^2 + 177077^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=284863.

It is a Duffinian number.

It is a Curzon 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, 21076013 + ... + 21083711.

Almost surely, 2^162293857538 is an apocalyptic number.

162293857538 is a deficient number, since it is larger than the sum of its proper divisors (87936734983).

162293857538 is an frugal number, since it uses more digits than its factorization.

162293857538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15474 (or 7738 counting only the distinct ones).

The product of its digits is 21772800, while the sum is 59.

The spelling of 162293857538 in words is "one hundred sixty-two billion, two hundred ninety-three million, eight hundred fifty-seven thousand, five hundred thirty-eight".