49268817877 has 2 divisors, whose sum is σ = 49268817878. Its totient is φ = 49268817876.

The previous prime is 49268817839. The next prime is 49268817881. The reversal of 49268817877 is 77871886294.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44137387921 + 5131429956 = 210089^2 + 71634^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49268817877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49268817817) 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 as a sum of consecutive naturals, namely, 24634408938 + 24634408939.

It is an arithmetic number, because the mean of its divisors is an integer number (24634408939).

Almost surely, 2^49268817877 is an apocalyptic number.

It is an amenable number.

49268817877 is a deficient number, since it is larger than the sum of its proper divisors (1).

49268817877 is an equidigital number, since it uses as much as digits as its factorization.

49268817877 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75866112, while the sum is 67.

The spelling of 49268817877 in words is "forty-nine billion, two hundred sixty-eight million, eight hundred seventeen thousand, eight hundred seventy-seven".