50640835899 has 32 divisors (see below), whose sum is σ = 70068789504. Its totient is φ = 32508945920.

The previous prime is 50640835897. The next prime is 50640835933. The reversal of 50640835899 is 99853804605.

It is not a de Polignac number, because 50640835899 - 2¹ = 50640835897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (50640835897) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15546679 + ... + 15549935.

It is an arithmetic number, because the mean of its divisors is an integer number (2189649672).

Almost surely, 2^50640835899 is an apocalyptic number.

50640835899 is a deficient number, since it is larger than the sum of its proper divisors (19427953605).

50640835899 is a wasteful number, since it uses less digits than its factorization.

50640835899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4907.

The product of its (nonzero) digits is 9331200, while the sum is 57.

The spelling of 50640835899 in words is "fifty billion, six hundred forty million, eight hundred thirty-five thousand, eight hundred ninety-nine".