49771788511 has 2 divisors, whose sum is σ = 49771788512. Its totient is φ = 49771788510.

The previous prime is 49771788509. The next prime is 49771788541. The reversal of 49771788511 is 11588717794.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 49771788511 - 2¹ = 49771788509 is a prime.

Together with 49771788509, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49771788541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24885894255 + 24885894256.

It is an arithmetic number, because the mean of its divisors is an integer number (24885894256).

Almost surely, 2^49771788511 is an apocalyptic number.

49771788511 is a deficient number, since it is larger than the sum of its proper divisors (1).

49771788511 is an equidigital number, since it uses as much as digits as its factorization.

49771788511 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3951360, while the sum is 58.

The spelling of 49771788511 in words is "forty-nine billion, seven hundred seventy-one million, seven hundred eighty-eight thousand, five hundred eleven".