77488714253 has 2 divisors, whose sum is σ = 77488714254. Its totient is φ = 77488714252.

The previous prime is 77488714249. The next prime is 77488714267. The reversal of 77488714253 is 35241788477.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74893626889 + 2595087364 = 273667^2 + 50942^2 .

It is a cyclic number.

It is not a de Polignac number, because 77488714253 - 2² = 77488714249 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77488714273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38744357126 + 38744357127.

It is an arithmetic number, because the mean of its divisors is an integer number (38744357127).

Almost surely, 2^77488714253 is an apocalyptic number.

It is an amenable number.

77488714253 is a deficient number, since it is larger than the sum of its proper divisors (1).

77488714253 is an equidigital number, since it uses as much as digits as its factorization.

77488714253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10536960, while the sum is 56.

The spelling of 77488714253 in words is "seventy-seven billion, four hundred eighty-eight million, seven hundred fourteen thousand, two hundred fifty-three".