772513864 has 16 divisors (see below), whose sum is σ = 1533667500. Its totient is φ = 363535872.

The previous prime is 772513853. The next prime is 772513871. The reversal of 772513864 is 468315277.

It can be written as a sum of positive squares in 2 ways, for example, as 771172900 + 1340964 = 27770^2 + 1158^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 772513864.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2839989 + ... + 2840260.

Almost surely, 2^772513864 is an apocalyptic number.

It is an amenable number.

772513864 is a deficient number, since it is larger than the sum of its proper divisors (761153636).

772513864 is a wasteful number, since it uses less digits than its factorization.

772513864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5680272 (or 5680268 counting only the distinct ones).

The product of its digits is 282240, while the sum is 43.

The square root of 772513864 is about 27794.1336256412. The cubic root of 772513864 is about 917.5620170569.

It can be divided in two parts, 772513 and 864, that added together give a palindrome (773377).

The spelling of 772513864 in words is "seven hundred seventy-two million, five hundred thirteen thousand, eight hundred sixty-four".