775120615652 has 12 divisors (see below), whose sum is σ = 1356614429100. Its totient is φ = 387516493056.

The previous prime is 775120615603. The next prime is 775120615657. The reversal of 775120615652 is 256516021577.

It can be written as a sum of positive squares in 2 ways, for example, as 251095196836 + 524025418816 = 501094^2 + 723896^2 .

It is a junction number, because it is equal to n+sod(n) for n = 775120615597 and 775120615606.

It is not an unprimeable number, because it can be changed into a prime (775120615657) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10913873 + ... + 10984664.

It is an arithmetic number, because the mean of its divisors is an integer number (113051202425).

Almost surely, 2^775120615652 is an apocalyptic number.

It is an amenable number.

775120615652 is a deficient number, since it is larger than the sum of its proper divisors (581493813448).

775120615652 is a wasteful number, since it uses less digits than its factorization.

775120615652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21907390 (or 21907388 counting only the distinct ones).

The product of its (nonzero) digits is 882000, while the sum is 47.

The spelling of 775120615652 in words is "seven hundred seventy-five billion, one hundred twenty million, six hundred fifteen thousand, six hundred fifty-two".