768143992 has 48 divisors (see below), whose sum is σ = 1827736920. Its totient is φ = 299275200.

The previous prime is 768143977. The next prime is 768143993. The reversal of 768143992 is 299341867.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (768143993) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 84759 + ... + 93382.

Almost surely, 2^768143992 is an apocalyptic number.

It is an amenable number.

768143992 is an abundant number, since it is smaller than the sum of its proper divisors (1059592928).

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

768143992 is a wasteful number, since it uses less digits than its factorization.

768143992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178172 (or 178161 counting only the distinct ones).

The product of its digits is 653184, while the sum is 49.

The square root of 768143992 is about 27715.4107312159. The cubic root of 768143992 is about 915.8286229986.

The spelling of 768143992 in words is "seven hundred sixty-eight million, one hundred forty-three thousand, nine hundred ninety-two".