49976817813 has 24 divisors (see below), whose sum is σ = 78725803520. Its totient is φ = 30365655840.

The previous prime is 49976817797. The next prime is 49976817823. The reversal of 49976817813 is 31871867994.

49976817813 is a `hidden beast` number, since 499 + 7 + 68 + 1 + 7 + 81 + 3 = 666.

It is not a de Polignac number, because 49976817813 - 2⁴ = 49976817797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49976817823) 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 23 ways as a sum of consecutive naturals, for example, 2694253 + ... + 2712738.

Almost surely, 2^49976817813 is an apocalyptic number.

It is an amenable number.

49976817813 is a deficient number, since it is larger than the sum of its proper divisors (28748985707).

49976817813 is a wasteful number, since it uses less digits than its factorization.

49976817813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5407089 (or 5407086 counting only the distinct ones).

The product of its digits is 18289152, while the sum is 63.

The spelling of 49976817813 in words is "forty-nine billion, nine hundred seventy-six million, eight hundred seventeen thousand, eight hundred thirteen".