772668128724238 has 16 divisors (see below), whose sum is σ = 1159162186990320. Its totient is φ = 386280734112000.

The previous prime is 772668128724227. The next prime is 772668128724251. The reversal of 772668128724238 is 832427821866277.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1970388388 + ... + 1970780488.

It is an arithmetic number, because the mean of its divisors is an integer number (72447636686895).

Almost surely, 2^{772668128724238} is an apocalyptic number.

772668128724238 is a deficient number, since it is larger than the sum of its proper divisors (386494058266082).

772668128724238 is a wasteful number, since it uses less digits than its factorization.

772668128724238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525603.

The product of its digits is 1213857792, while the sum is 73.

The spelling of 772668128724238 in words is "seven hundred seventy-two trillion, six hundred sixty-eight billion, one hundred twenty-eight million, seven hundred twenty-four thousand, two hundred thirty-eight".