76406914884521 has 8 divisors (see below), whose sum is σ = 82710713763720. Its totient is φ = 70164022275072.

The previous prime is 76406914884499. The next prime is 76406914884523. The reversal of 76406914884521 is 12548841960467.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 930088576921 + 75476826307600 = 964411^2 + 8687740^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 76406914884521 - 2³⁴ = 76389735015337 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (76406914884523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15226564826 + ... + 15226569843.

It is an arithmetic number, because the mean of its divisors is an integer number (10338839220465).

Almost surely, 2^{76406914884521} is an apocalyptic number.

It is an amenable number.

76406914884521 is a deficient number, since it is larger than the sum of its proper divisors (6303798879199).

76406914884521 is a wasteful number, since it uses less digits than its factorization.

76406914884521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30453134875.

The product of its (nonzero) digits is 92897280, while the sum is 65.

The spelling of 76406914884521 in words is "seventy-six trillion, four hundred six billion, nine hundred fourteen million, eight hundred eighty-four thousand, five hundred twenty-one".