50640438998 has 8 divisors (see below), whose sum is σ = 76278486240. Its totient is φ = 25214276920.

The previous prime is 50640438977. The next prime is 50640439007. The reversal of 50640438998 is 89983404605.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52970693 + ... + 52971648.

It is an arithmetic number, because the mean of its divisors is an integer number (9534810780).

Almost surely, 2^50640438998 is an apocalyptic number.

50640438998 is a deficient number, since it is larger than the sum of its proper divisors (25638047242).

50640438998 is a wasteful number, since it uses less digits than its factorization.

50640438998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105942582.

The product of its (nonzero) digits is 7464960, while the sum is 56.

The spelling of 50640438998 in words is "fifty billion, six hundred forty million, four hundred thirty-eight thousand, nine hundred ninety-eight".