56747732287685 has 16 divisors (see below), whose sum is σ = 68205716451072. Its totient is φ = 45325900588800.

The previous prime is 56747732287681. The next prime is 56747732287717. The reversal of 56747732287685 is 58678223774765.

It is not a de Polignac number, because 56747732287685 - 2² = 56747732287681 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56747732287681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70742045 + ... + 71539725.

It is an arithmetic number, because the mean of its divisors is an integer number (4262857278192).

Almost surely, 2^{56747732287685} is an apocalyptic number.

It is an amenable number.

56747732287685 is a deficient number, since it is larger than the sum of its proper divisors (11457984163387).

56747732287685 is a wasteful number, since it uses less digits than its factorization.

56747732287685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820324.

The product of its digits is 6638284800, while the sum is 77.

The spelling of 56747732287685 in words is "fifty-six trillion, seven hundred forty-seven billion, seven hundred thirty-two million, two hundred eighty-seven thousand, six hundred eighty-five".