76899994728 has 16 divisors (see below), whose sum is σ = 192249986880. Its totient is φ = 25633331568.

The previous prime is 76899994727. The next prime is 76899994739. The reversal of 76899994728 is 82749999867.

It is not an unprimeable number, because it can be changed into a prime (76899994727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1602083200 + ... + 1602083247.

It is an arithmetic number, because the mean of its divisors is an integer number (12015624180).

Almost surely, 2^76899994728 is an apocalyptic number.

It is an amenable number.

76899994728 is an abundant number, since it is smaller than the sum of its proper divisors (115349992152).

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

76899994728 is a wasteful number, since it uses less digits than its factorization.

76899994728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3204166456 (or 3204166452 counting only the distinct ones).

The product of its digits is 987614208, while the sum is 78.

The spelling of 76899994728 in words is "seventy-six billion, eight hundred ninety-nine million, nine hundred ninety-four thousand, seven hundred twenty-eight".