768190772817 has 24 divisors (see below), whose sum is σ = 1194993800000. Its totient is φ = 472720766688.

The previous prime is 768190772771. The next prime is 768190772849. The reversal of 768190772817 is 718277091867.

It is not a de Polignac number, because 768190772817 - 2⁶ = 768190772753 is a prime.

It is a super-2 number, since 2×768190772817² (a number of 25 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (768190772887) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7377684 + ... + 7481082.

Almost surely, 2^768190772817 is an apocalyptic number.

It is an amenable number.

768190772817 is a deficient number, since it is larger than the sum of its proper divisors (426803027183).

768190772817 is a wasteful number, since it uses less digits than its factorization.

768190772817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166917 (or 166914 counting only the distinct ones).

The product of its (nonzero) digits is 16595712, while the sum is 63.

The spelling of 768190772817 in words is "seven hundred sixty-eight billion, one hundred ninety million, seven hundred seventy-two thousand, eight hundred seventeen".