49899382879 has 4 divisors (see below), whose sum is σ = 51116441040. Its totient is φ = 48682324720.

The previous prime is 49899382849. The next prime is 49899382963. The reversal of 49899382879 is 97828399894.

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

It is a cyclic number.

It is not a de Polignac number, because 49899382879 - 2³⁵ = 15539644511 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 (49899382849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 608529019 + ... + 608529100.

It is an arithmetic number, because the mean of its divisors is an integer number (12779110260).

Almost surely, 2^49899382879 is an apocalyptic number.

49899382879 is a deficient number, since it is larger than the sum of its proper divisors (1217058161).

49899382879 is a wasteful number, since it uses less digits than its factorization.

49899382879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1217058160.

The product of its digits is 564350976, while the sum is 76.

The spelling of 49899382879 in words is "forty-nine billion, eight hundred ninety-nine million, three hundred eighty-two thousand, eight hundred seventy-nine".