76569820830 has 80 divisors (see below), whose sum is σ = 216723980880. Its totient is φ = 19343950848.

The previous prime is 76569820793. The next prime is 76569820861. The reversal of 76569820830 is 3802896567.

It is a happy number.

76569820830 is a `hidden beast` number, since 76 + 569 + 8 + 2 + 0 + 8 + 3 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2472259 + ... + 2503038.

It is an arithmetic number, because the mean of its divisors is an integer number (2709049761).

Almost surely, 2^76569820830 is an apocalyptic number.

76569820830 is an abundant number, since it is smaller than the sum of its proper divisors (140154160050).

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

76569820830 is a wasteful number, since it uses less digits than its factorization.

76569820830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4975335 (or 4975326 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 54.

The spelling of 76569820830 in words is "seventy-six billion, five hundred sixty-nine million, eight hundred twenty thousand, eight hundred thirty".