49999599959 has 4 divisors (see below), whose sum is σ = 50044931616. Its totient is φ = 49954268304.

The previous prime is 49999599931. The next prime is 49999599961. The reversal of 49999599959 is 95999599994.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49999599959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49999529959) 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 3 ways as a sum of consecutive naturals, for example, 22664174 + ... + 22666379.

It is an arithmetic number, because the mean of its divisors is an integer number (12511232904).

Almost surely, 2^49999599959 is an apocalyptic number.

49999599959 is a deficient number, since it is larger than the sum of its proper divisors (45331657).

49999599959 is a wasteful number, since it uses less digits than its factorization.

49999599959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45331656.

The product of its digits is 4304672100, while the sum is 86.

The spelling of 49999599959 in words is "forty-nine billion, nine hundred ninety-nine million, five hundred ninety-nine thousand, nine hundred fifty-nine".