772268463218 has 18 divisors (see below), whose sum is σ = 1347544845423. Its totient is φ = 330968470140.

The previous prime is 772268463119. The next prime is 772268463227. The reversal of 772268463218 is 812364862277.

It can be written as a sum of positive squares in only one way, i.e., 386134231609 + 386134231609 = 621397^2 + 621397^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=621397.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 8655173 + ... + 8743943.

Almost surely, 2^772268463218 is an apocalyptic number.

772268463218 is a deficient number, since it is larger than the sum of its proper divisors (575276382205).

772268463218 is an frugal number, since it uses more digits than its factorization.

772268463218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177558 (or 88780 counting only the distinct ones).

The product of its digits is 10838016, while the sum is 56.

The spelling of 772268463218 in words is "seven hundred seventy-two billion, two hundred sixty-eight million, four hundred sixty-three thousand, two hundred eighteen".