766763430436 has 6 divisors (see below), whose sum is σ = 1341836003270. Its totient is φ = 383381715216.

The previous prime is 766763430421. The next prime is 766763430443. The reversal of 766763430436 is 634034367667.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 393246884836 + 373516545600 = 627094^2 + 611160^2 .

It is a super-2 number, since 2×766763430436² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95845428801 + ... + 95845428808.

Almost surely, 2^766763430436 is an apocalyptic number.

It is an amenable number.

766763430436 is a deficient number, since it is larger than the sum of its proper divisors (575072572834).

766763430436 is a wasteful number, since it uses less digits than its factorization.

766763430436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191690857613 (or 191690857611 counting only the distinct ones).

The product of its (nonzero) digits is 27433728, while the sum is 55.

The spelling of 766763430436 in words is "seven hundred sixty-six billion, seven hundred sixty-three million, four hundred thirty thousand, four hundred thirty-six".