77825412359 has 2 divisors, whose sum is σ = 77825412360. Its totient is φ = 77825412358.

The previous prime is 77825412307. The next prime is 77825412397. The reversal of 77825412359 is 95321452877.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77825412359 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 77825412359.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77825415359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38912706179 + 38912706180.

It is an arithmetic number, because the mean of its divisors is an integer number (38912706180).

Almost surely, 2^77825412359 is an apocalyptic number.

77825412359 is a deficient number, since it is larger than the sum of its proper divisors (1).

77825412359 is an equidigital number, since it uses as much as digits as its factorization.

77825412359 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4233600, while the sum is 53.

The spelling of 77825412359 in words is "seventy-seven billion, eight hundred twenty-five million, four hundred twelve thousand, three hundred fifty-nine".