49880938979 has 4 divisors (see below), whose sum is σ = 49882033680. Its totient is φ = 49879844280.

The previous prime is 49880938967. The next prime is 49880938993. The reversal of 49880938979 is 97983908894.

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-49880938979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49880937979) 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, 475892 + ... + 571169.

It is an arithmetic number, because the mean of its divisors is an integer number (12470508420).

Almost surely, 2^49880938979 is an apocalyptic number.

49880938979 is a deficient number, since it is larger than the sum of its proper divisors (1094701).

49880938979 is a wasteful number, since it uses less digits than its factorization.

49880938979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1094700.

The product of its (nonzero) digits is 282175488, while the sum is 74.

The spelling of 49880938979 in words is "forty-nine billion, eight hundred eighty million, nine hundred thirty-eight thousand, nine hundred seventy-nine".