76438450285712 has 20 divisors (see below), whose sum is σ = 152102186549436. Its totient is φ = 37186273111680.

The previous prime is 76438450285679. The next prime is 76438450285733. The reversal of 76438450285712 is 21758205483467.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 73830987510016 + 2607462775696 = 8592496^2 + 1614764^2 .

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, 64559501339 + ... + 64559502522.

Almost surely, 2^{76438450285712} is an apocalyptic number.

It is an amenable number.

76438450285712 is a deficient number, since it is larger than the sum of its proper divisors (75663736263724).

76438450285712 is a wasteful number, since it uses less digits than its factorization.

76438450285712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129119003906 (or 129119003900 counting only the distinct ones).

The product of its (nonzero) digits is 90316800, while the sum is 62.

The spelling of 76438450285712 in words is "seventy-six trillion, four hundred thirty-eight billion, four hundred fifty million, two hundred eighty-five thousand, seven hundred twelve".