56686850689 has 8 divisors (see below), whose sum is σ = 64948161728. Its totient is φ = 48466337040.

The previous prime is 56686850687. The next prime is 56686850699. The reversal of 56686850689 is 98605868665.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56686850689 - 2¹ = 56686850687 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56686850687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10196367 + ... + 10201924.

It is an arithmetic number, because the mean of its divisors is an integer number (8118520216).

Almost surely, 2^56686850689 is an apocalyptic number.

It is an amenable number.

56686850689 is a deficient number, since it is larger than the sum of its proper divisors (8261311039).

56686850689 is a wasteful number, since it uses less digits than its factorization.

56686850689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20398695.

The product of its (nonzero) digits is 149299200, while the sum is 67.

The spelling of 56686850689 in words is "fifty-six billion, six hundred eighty-six million, eight hundred fifty thousand, six hundred eighty-nine".