76881112645821 has 16 divisors (see below), whose sum is σ = 111830868575040. Its totient is φ = 46593032209920.

The previous prime is 76881112645789. The next prime is 76881112645837. The reversal of 76881112645821 is 12854621118867.

It is not a de Polignac number, because 76881112645821 - 2⁵ = 76881112645789 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76881112640821) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 38550526 + ... + 40495743.

It is an arithmetic number, because the mean of its divisors is an integer number (6989429285940).

Almost surely, 2^{76881112645821} is an apocalyptic number.

It is an amenable number.

76881112645821 is a deficient number, since it is larger than the sum of its proper divisors (34949755929219).

76881112645821 is a wasteful number, since it uses less digits than its factorization.

76881112645821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79075756.

The product of its digits is 10321920, while the sum is 60.

The spelling of 76881112645821 in words is "seventy-six trillion, eight hundred eighty-one billion, one hundred twelve million, six hundred forty-five thousand, eight hundred twenty-one".