49520878979 has 16 divisors (see below), whose sum is σ = 60055102464. Its totient is φ = 40215463200.

The previous prime is 49520878973. The next prime is 49520879017. The reversal of 49520878979 is 97987802594.

49520878979 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 49520878979 - 2⁴ = 49520878963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49520878973) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5581049 + ... + 5589914.

It is an arithmetic number, because the mean of its divisors is an integer number (3753443904).

Almost surely, 2^49520878979 is an apocalyptic number.

49520878979 is a deficient number, since it is larger than the sum of its proper divisors (10534223485).

49520878979 is a wasteful number, since it uses less digits than its factorization.

49520878979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11171018.

The product of its (nonzero) digits is 91445760, while the sum is 68.

The spelling of 49520878979 in words is "forty-nine billion, five hundred twenty million, eight hundred seventy-eight thousand, nine hundred seventy-nine".