49075389677 has 2 divisors, whose sum is σ = 49075389678. Its totient is φ = 49075389676.

The previous prime is 49075389667. The next prime is 49075389679. The reversal of 49075389677 is 77698357094.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46539864361 + 2535525316 = 215731^2 + 50354^2 .

It is a cyclic number.

It is not a de Polignac number, because 49075389677 - 2⁶ = 49075389613 is a prime.

Together with 49075389679, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49075389679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24537694838 + 24537694839.

It is an arithmetic number, because the mean of its divisors is an integer number (24537694839).

Almost surely, 2^49075389677 is an apocalyptic number.

It is an amenable number.

49075389677 is a deficient number, since it is larger than the sum of its proper divisors (1).

49075389677 is an equidigital number, since it uses as much as digits as its factorization.

49075389677 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80015040, while the sum is 65.

The spelling of 49075389677 in words is "forty-nine billion, seventy-five million, three hundred eighty-nine thousand, six hundred seventy-seven".