50191644904 has 32 divisors (see below), whose sum is σ = 99191385000. Its totient is φ = 23773265152.

The previous prime is 50191644847. The next prime is 50191644931. The reversal of 50191644904 is 40944619105.

It can be written as a sum of positive squares in 4 ways, for example, as 48342816900 + 1848828004 = 219870^2 + 42998^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2028679 + ... + 2053270.

Almost surely, 2^50191644904 is an apocalyptic number.

It is an amenable number.

50191644904 is a deficient number, since it is larger than the sum of its proper divisors (48999740096).

50191644904 is a wasteful number, since it uses less digits than its factorization.

50191644904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4082037 (or 4082033 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 43.

The spelling of 50191644904 in words is "fifty billion, one hundred ninety-one million, six hundred forty-four thousand, nine hundred four".