76505620413745 has 4 divisors (see below), whose sum is σ = 91806744496500. Its totient is φ = 61204496330992.

The previous prime is 76505620413731. The next prime is 76505620413767. The reversal of 76505620413745 is 54731402650567.

It is a happy number.

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 54883901606689 + 21621718807056 = 7408367^2 + 4649916^2 .

It is a cyclic number.

It is not a de Polignac number, because 76505620413745 - 2²³ = 76505612025137 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7650562041370 + ... + 7650562041379.

It is an arithmetic number, because the mean of its divisors is an integer number (22951686124125).

Almost surely, 2^{76505620413745} is an apocalyptic number.

It is an amenable number.

76505620413745 is a deficient number, since it is larger than the sum of its proper divisors (15301124082755).

76505620413745 is a wasteful number, since it uses less digits than its factorization.

76505620413745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15301124082754.

The product of its (nonzero) digits is 21168000, while the sum is 55.

The spelling of 76505620413745 in words is "seventy-six trillion, five hundred five billion, six hundred twenty million, four hundred thirteen thousand, seven hundred forty-five".