76666590828 has 96 divisors (see below), whose sum is σ = 207636710400. Its totient is φ = 24417372672.

The previous prime is 76666590827. The next prime is 76666590887. The reversal of 76666590828 is 82809566667.

It is a super-2 number, since 2×76666590828² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (76666590821) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2291025 + ... + 2324247.

It is an arithmetic number, because the mean of its divisors is an integer number (2162882400).

Almost surely, 2^76666590828 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 76666590828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103818355200).

76666590828 is an abundant number, since it is smaller than the sum of its proper divisors (130970119572).

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

76666590828 is a wasteful number, since it uses less digits than its factorization.

76666590828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34188 (or 34180 counting only the distinct ones).

The product of its (nonzero) digits is 52254720, while the sum is 63.

The spelling of 76666590828 in words is "seventy-six billion, six hundred sixty-six million, five hundred ninety thousand, eight hundred twenty-eight".