768155994 has 16 divisors (see below), whose sum is σ = 1707013440. Its totient is φ = 256051980.

The previous prime is 768155963. The next prime is 768156007. The reversal of 768155994 is 499551867.

768155994 is a `hidden beast` number, since 7 + 6 + 81 + 559 + 9 + 4 = 666.

It is a super-2 number, since 2×768155994² = 1180127262236256072, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 14225111 = 768155994 / (7 + 6 + 8 + 1 + 5 + 5 + 9 + 9 + 4).

It is a self number, because there is not a number n which added to its sum of digits gives 768155994.

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, 7112502 + ... + 7112609.

It is an arithmetic number, because the mean of its divisors is an integer number (106688340).

Almost surely, 2^768155994 is an apocalyptic number.

768155994 is an abundant number, since it is smaller than the sum of its proper divisors (938857446).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

768155994 is a wasteful number, since it uses less digits than its factorization.

768155994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14225122 (or 14225116 counting only the distinct ones).

The product of its digits is 2721600, while the sum is 54.

The square root of 768155994 is about 27715.6272525086. The cubic root of 768155994 is about 915.8333928152.

The spelling of 768155994 in words is "seven hundred sixty-eight million, one hundred fifty-five thousand, nine hundred ninety-four".