77325857279 has 16 divisors (see below), whose sum is σ = 86432409504. Its totient is φ = 68566233600.

The previous prime is 77325857249. The next prime is 77325857299. The reversal of 77325857279 is 97275852377.

It is a cyclic number.

It is not a de Polignac number, because 77325857279 - 2¹⁶ = 77325791743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77325857249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2289197 + ... + 2322729.

It is an arithmetic number, because the mean of its divisors is an integer number (5402025594).

Almost surely, 2^77325857279 is an apocalyptic number.

77325857279 is a deficient number, since it is larger than the sum of its proper divisors (9106552225).

77325857279 is a wasteful number, since it uses less digits than its factorization.

77325857279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38698.

The product of its digits is 51861600, while the sum is 62.

The spelling of 77325857279 in words is "seventy-seven billion, three hundred twenty-five million, eight hundred fifty-seven thousand, two hundred seventy-nine".