49539076891 has 2 divisors, whose sum is σ = 49539076892. Its totient is φ = 49539076890.

The previous prime is 49539076883. The next prime is 49539076919. The reversal of 49539076891 is 19867093594.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 49539076891 - 2³ = 49539076883 is a prime.

It is not a weakly prime, because it can be changed into another prime (49539071891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24769538445 + 24769538446.

It is an arithmetic number, because the mean of its divisors is an integer number (24769538446).

Almost surely, 2^49539076891 is an apocalyptic number.

49539076891 is a deficient number, since it is larger than the sum of its proper divisors (1).

49539076891 is an equidigital number, since it uses as much as digits as its factorization.

49539076891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14696640, while the sum is 61.

The spelling of 49539076891 in words is "forty-nine billion, five hundred thirty-nine million, seventy-six thousand, eight hundred ninety-one".