56740631689 has 16 divisors (see below), whose sum is σ = 68729126400. Its totient is φ = 45728492544.

The previous prime is 56740631687. The next prime is 56740631713. The reversal of 56740631689 is 98613604765.

It is not a de Polignac number, because 56740631689 - 2¹ = 56740631687 is a prime.

It is a super-3 number, since 3×56740631689³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56740631687) 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, 116209 + ... + 356350.

It is an arithmetic number, because the mean of its divisors is an integer number (4295570400).

Almost surely, 2^56740631689 is an apocalyptic number.

It is an amenable number.

56740631689 is a deficient number, since it is larger than the sum of its proper divisors (11988494711).

56740631689 is a wasteful number, since it uses less digits than its factorization.

56740631689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473592.

The product of its (nonzero) digits is 6531840, while the sum is 55.

The spelling of 56740631689 in words is "fifty-six billion, seven hundred forty million, six hundred thirty-one thousand, six hundred eighty-nine".