763786357789225 has 27 divisors (see below), whose sum is σ = 990067600454583. Its totient is φ = 584460172193040.

The previous prime is 763786357789211. The next prime is 763786357789229. The reversal of 763786357789225 is 522987753687367.

The square root of 763786357789225 is 27636685.

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

It can be written as a sum of positive squares in only one way, i.e., 274963088804121 + 488823268985104 = 16582011^2 + 22109348^2 .

It is not a de Polignac number, because 763786357789225 - 2⁷ = 763786357789097 is a prime.

It is a super-2 number, since 2×763786357789225² (a number of 31 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (763786357789229) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 3178098616 + ... + 3178338934.

Almost surely, 2^{763786357789225} is an apocalyptic number.

763786357789225 is the 27636685-th square number.

763786357789225 is the 13818343-rd centered octagonal number.

It is an amenable number.

763786357789225 is a deficient number, since it is larger than the sum of its proper divisors (226281242665358).

763786357789225 is an frugal number, since it uses more digits than its factorization.

763786357789225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480694 (or 240347 counting only the distinct ones).

The product of its digits is 44808422400, while the sum is 85.

The spelling of 763786357789225 in words is "seven hundred sixty-three trillion, seven hundred eighty-six billion, three hundred fifty-seven million, seven hundred eighty-nine thousand, two hundred twenty-five".