49690246879 has 12 divisors (see below), whose sum is σ = 62249321064. Its totient is φ = 39315359664.

The previous prime is 49690246819. The next prime is 49690246913. The reversal of 49690246879 is 97864209694.

It is a happy number.

It is not a de Polignac number, because 49690246879 - 2²³ = 49681858271 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49690246879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49690246819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39002697 + ... + 39003970.

It is an arithmetic number, because the mean of its divisors is an integer number (5187443422).

Almost surely, 2^49690246879 is an apocalyptic number.

49690246879 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

49690246879 is a deficient number, since it is larger than the sum of its proper divisors (12559074185).

49690246879 is a wasteful number, since it uses less digits than its factorization.

49690246879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78006694 (or 78006687 counting only the distinct ones).

The product of its (nonzero) digits is 47029248, while the sum is 64.

The spelling of 49690246879 in words is "forty-nine billion, six hundred ninety million, two hundred forty-six thousand, eight hundred seventy-nine".