50990815368 has 48 divisors (see below), whose sum is σ = 140705798220. Its totient is φ = 16676240256.

The previous prime is 50990815367. The next prime is 50990815387. The reversal of 50990815368 is 86351809905.

It is a happy number.

50990815368 is a `hidden beast` number, since 509 + 9 + 0 + 81 + 53 + 6 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 48295336644 + 2695478724 = 219762^2 + 51918^2 .

It is not an unprimeable number, because it can be changed into a prime (50990815363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6677371 + ... + 6685002.

Almost surely, 2^50990815368 is an apocalyptic number.

It is an amenable number.

50990815368 is an abundant number, since it is smaller than the sum of its proper divisors (89714982852).

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

50990815368 is a wasteful number, since it uses less digits than its factorization.

50990815368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13362438 (or 13362431 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 54.

The spelling of 50990815368 in words is "fifty billion, nine hundred ninety million, eight hundred fifteen thousand, three hundred sixty-eight".