770116020517 has 4 divisors (see below), whose sum is σ = 770136600460. Its totient is φ = 770095440576.

The previous prime is 770116020491. The next prime is 770116020539. The reversal of 770116020517 is 715020611077.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 382318385761 + 387797634756 = 618319^2 + 622734^2 .

It is a cyclic number.

It is not a de Polignac number, because 770116020517 - 2²⁷ = 769981802789 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 (770116020547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10233738 + ... + 10308715.

It is an arithmetic number, because the mean of its divisors is an integer number (192534150115).

Almost surely, 2^770116020517 is an apocalyptic number.

It is an amenable number.

770116020517 is a deficient number, since it is larger than the sum of its proper divisors (20579943).

770116020517 is a wasteful number, since it uses less digits than its factorization.

770116020517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20579942.

The product of its (nonzero) digits is 20580, while the sum is 37.

The spelling of 770116020517 in words is "seven hundred seventy billion, one hundred sixteen million, twenty thousand, five hundred seventeen".