76505427221540 has 48 divisors (see below), whose sum is σ = 163139688496512. Its totient is φ = 30131543713536.

The previous prime is 76505427221539. The next prime is 76505427221567. The reversal of 76505427221540 is 4512272450567.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43777544 + ... + 45491583.

It is an arithmetic number, because the mean of its divisors is an integer number (3398743510344).

Almost surely, 2^{76505427221540} is an apocalyptic number.

It is an amenable number.

76505427221540 is an abundant number, since it is smaller than the sum of its proper divisors (86634261274972).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

76505427221540 is a wasteful number, since it uses less digits than its factorization.

76505427221540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89269796 (or 89269794 counting only the distinct ones).

The product of its (nonzero) digits is 4704000, while the sum is 50.

The spelling of 76505427221540 in words is "seventy-six trillion, five hundred five billion, four hundred twenty-seven million, two hundred twenty-one thousand, five hundred forty".