770640052577 has 4 divisors (see below), whose sum is σ = 781196765700. Its totient is φ = 760083339456.

The previous prime is 770640052519. The next prime is 770640052591. The reversal of 770640052577 is 775250046077.

It is a happy number.

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 612362591296 + 158277461281 = 782536^2 + 397841^2 .

It is a cyclic number.

It is not a de Polignac number, because 770640052577 - 2¹⁰ = 770640051553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (770640052597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5278356452 + ... + 5278356597.

It is an arithmetic number, because the mean of its divisors is an integer number (195299191425).

Almost surely, 2^770640052577 is an apocalyptic number.

It is an amenable number.

770640052577 is a deficient number, since it is larger than the sum of its proper divisors (10556713123).

770640052577 is a wasteful number, since it uses less digits than its factorization.

770640052577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10556713122.

The product of its (nonzero) digits is 2881200, while the sum is 50.

The spelling of 770640052577 in words is "seven hundred seventy billion, six hundred forty million, fifty-two thousand, five hundred seventy-seven".