49959251911 has 2 divisors, whose sum is σ = 49959251912. Its totient is φ = 49959251910.

The previous prime is 49959251779. The next prime is 49959251939. The reversal of 49959251911 is 11915295994.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 49959251911 - 2⁹ = 49959251399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49959251311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24979625955 + 24979625956.

It is an arithmetic number, because the mean of its divisors is an integer number (24979625956).

Almost surely, 2^49959251911 is an apocalyptic number.

49959251911 is a deficient number, since it is larger than the sum of its proper divisors (1).

49959251911 is an equidigital number, since it uses as much as digits as its factorization.

49959251911 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1312200, while the sum is 55.

The spelling of 49959251911 in words is "forty-nine billion, nine hundred fifty-nine million, two hundred fifty-one thousand, nine hundred eleven".