49245447077 has 2 divisors, whose sum is σ = 49245447078. Its totient is φ = 49245447076.

The previous prime is 49245447029. The next prime is 49245447127. The reversal of 49245447077 is 77074454294.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48684657316 + 560789761 = 220646^2 + 23681^2 .

It is a cyclic number.

It is not a de Polignac number, because 49245447077 - 2⁸ = 49245446821 is a prime.

It is a super-2 number, since 2×49245447077² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49245447677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24622723538 + 24622723539.

It is an arithmetic number, because the mean of its divisors is an integer number (24622723539).

Almost surely, 2^49245447077 is an apocalyptic number.

It is an amenable number.

49245447077 is a deficient number, since it is larger than the sum of its proper divisors (1).

49245447077 is an equidigital number, since it uses as much as digits as its factorization.

49245447077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7902720, while the sum is 53.

The spelling of 49245447077 in words is "forty-nine billion, two hundred forty-five million, four hundred forty-seven thousand, seventy-seven".