693180121922 has 54 divisors (see below), whose sum is σ = 1085015584011. Its totient is φ = 332131711040.

The previous prime is 693180121919. The next prime is 693180121937. The reversal of 693180121922 is 229121081396.

It can be written as a sum of positive squares in 5 ways, for example, as 288647233081 + 404532888841 = 537259^2 + 636029^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=588719.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 4006821428 + ... + 4006821600.

Almost surely, 2^693180121922 is an apocalyptic number.

693180121922 is a deficient number, since it is larger than the sum of its proper divisors (391835462089).

693180121922 is an frugal number, since it uses more digits than its factorization.

693180121922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596 (or 299 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 44.

The spelling of 693180121922 in words is "six hundred ninety-three billion, one hundred eighty million, one hundred twenty-one thousand, nine hundred twenty-two".