50849802864 has 140 divisors (see below), whose sum is σ = 168817032816. Its totient is φ = 14528491776.

The previous prime is 50849802863. The next prime is 50849802901. The reversal of 50849802864 is 46820894805.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 50849802864.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50849802863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 229749 + ... + 393044.

Almost surely, 2^50849802864 is an apocalyptic number.

50849802864 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

50849802864 is an abundant number, since it is smaller than the sum of its proper divisors (117967229952).

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

50849802864 is an equidigital number, since it uses as much as digits as its factorization.

50849802864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622826 (or 622805 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 54.

The spelling of 50849802864 in words is "fifty billion, eight hundred forty-nine million, eight hundred two thousand, eight hundred sixty-four".