538709903946 has 24 divisors (see below), whose sum is σ = 1168992267300. Its totient is φ = 179294971776.

The previous prime is 538709903917. The next prime is 538709903957. The reversal of 538709903946 is 649309907835.

538709903946 is a `hidden beast` number, since 538 + 7 + 0 + 9 + 9 + 0 + 3 + 94 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 538625355921 + 84548025 = 733911^2 + 9195^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22904271 + ... + 22927778.

Almost surely, 2^538709903946 is an apocalyptic number.

538709903946 is an abundant number, since it is smaller than the sum of its proper divisors (630282363354).

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

538709903946 is a wasteful number, since it uses less digits than its factorization.

538709903946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45832710 (or 45832707 counting only the distinct ones).

The product of its (nonzero) digits is 44089920, while the sum is 63.

The spelling of 538709903946 in words is "five hundred thirty-eight billion, seven hundred nine million, nine hundred three thousand, nine hundred forty-six".