76602234474721 has 4 divisors (see below), whose sum is σ = 76602337908372. Its totient is φ = 76602131041072.

The previous prime is 76602234474673. The next prime is 76602234474743. The reversal of 76602234474721 is 12747443220667.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22526272054225 + 54075962420496 = 4746185^2 + 7353636^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76602234474721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76602234474791) 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 3 ways as a sum of consecutive naturals, for example, 50597866 + ... + 52089811.

It is an arithmetic number, because the mean of its divisors is an integer number (19150584477093).

Almost surely, 2^{76602234474721} is an apocalyptic number.

It is an amenable number.

76602234474721 is a deficient number, since it is larger than the sum of its proper divisors (103433651).

76602234474721 is a wasteful number, since it uses less digits than its factorization.

76602234474721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103433650.

The product of its (nonzero) digits is 18966528, while the sum is 55.

The spelling of 76602234474721 in words is "seventy-six trillion, six hundred two billion, two hundred thirty-four million, four hundred seventy-four thousand, seven hundred twenty-one".