772695498961 has 3 divisors (see below), whose sum is σ = 772696377993. Its totient is φ = 772694619930.

The previous prime is 772695498943. The next prime is 772695498997. The reversal of 772695498961 is 169894596277.

The square root of 772695498961 is 879031.

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

772695498961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 772695498961 - 2¹³ = 772695490769 is a prime.

It is a super-2 number, since 2×772695498961² (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 (772695498901) 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, 439516 + ... + 1318546.

It is an arithmetic number, because the mean of its divisors is an integer number (257565459331).

Almost surely, 2^772695498961 is an apocalyptic number.

772695498961 is the 879031-st square number.

772695498961 is the 439516-th centered octagonal number.

It is an amenable number.

772695498961 is a deficient number, since it is larger than the sum of its proper divisors (879032).

772695498961 is an frugal number, since it uses more digits than its factorization.

772695498961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1758062 (or 879031 counting only the distinct ones).

The product of its digits is 411505920, while the sum is 73.

The spelling of 772695498961 in words is "seven hundred seventy-two billion, six hundred ninety-five million, four hundred ninety-eight thousand, nine hundred sixty-one".