76721734030012 has 24 divisors (see below), whose sum is σ = 142178781303216. Its totient is φ = 36099794012928.

The previous prime is 76721734030009. The next prime is 76721734030031. The reversal of 76721734030012 is 21003043712767.

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 7 ways as a sum of consecutive naturals, for example, 70572418 + ... + 71651305.

It is an arithmetic number, because the mean of its divisors is an integer number (5924115887634).

Almost surely, 2^{76721734030012} is an apocalyptic number.

It is an amenable number.

76721734030012 is a deficient number, since it is larger than the sum of its proper divisors (65457047273204).

76721734030012 is a wasteful number, since it uses less digits than its factorization.

76721734030012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142231677 (or 142231675 counting only the distinct ones).

The product of its (nonzero) digits is 296352, while the sum is 43.

Adding to 76721734030012 its reverse (21003043712767), we get a palindrome (97724777742779).

The spelling of 76721734030012 in words is "seventy-six trillion, seven hundred twenty-one billion, seven hundred thirty-four million, thirty thousand, twelve".