49977558667 has 16 divisors (see below), whose sum is σ = 51310195200. Its totient is φ = 48663679680.

The previous prime is 49977558661. The next prime is 49977558707. The reversal of 49977558667 is 76685577994.

It is a cyclic number.

It is not a de Polignac number, because 49977558667 - 2²³ = 49969170059 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 49977558667.

It is not an unprimeable number, because it can be changed into a prime (49977558661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6106384 + ... + 6114562.

It is an arithmetic number, because the mean of its divisors is an integer number (3206887200).

Almost surely, 2^49977558667 is an apocalyptic number.

49977558667 is a deficient number, since it is larger than the sum of its proper divisors (1332636533).

49977558667 is an equidigital number, since it uses as much as digits as its factorization.

49977558667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9306.

The product of its digits is 800150400, while the sum is 73.

The spelling of 49977558667 in words is "forty-nine billion, nine hundred seventy-seven million, five hundred fifty-eight thousand, six hundred sixty-seven".