770718944836 has 9 divisors (see below), whose sum is σ = 1348761226141. Its totient is φ = 385358594512.

The previous prime is 770718944803. The next prime is 770718944837. The reversal of 770718944836 is 638449817077.

The square root of 770718944836 is 877906.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 685136952900 + 85581991936 = 827730^2 + 292544^2 .

It is a super-2 number, since 2×770718944836² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (770718944837) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1536336 + ... + 1975288.

Almost surely, 2^770718944836 is an apocalyptic number.

770718944836 is the 877906-th square number.

It is an amenable number.

770718944836 is a deficient number, since it is larger than the sum of its proper divisors (578042281305).

770718944836 is an frugal number, since it uses more digits than its factorization.

770718944836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 877910 (or 438955 counting only the distinct ones).

The product of its (nonzero) digits is 56899584, while the sum is 64.

Multiplying 770718944836 by its sum of digits (64), we get a square (49326012469504 = 7023248²).

The spelling of 770718944836 in words is "seven hundred seventy billion, seven hundred eighteen million, nine hundred forty-four thousand, eight hundred thirty-six".