56140543689 has 8 divisors (see below), whose sum is σ = 74867128800. Its totient is φ = 37420493856.

The previous prime is 56140543681. The next prime is 56140543703. The reversal of 56140543689 is 98634504165.

56140543689 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 56140543689 - 2³ = 56140543681 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56140543681) 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, 1613739 + ... + 1648160.

It is an arithmetic number, because the mean of its divisors is an integer number (9358391100).

Almost surely, 2^56140543689 is an apocalyptic number.

It is an amenable number.

56140543689 is a deficient number, since it is larger than the sum of its proper divisors (18726585111).

56140543689 is a wasteful number, since it uses less digits than its factorization.

56140543689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3267639.

The product of its (nonzero) digits is 3110400, while the sum is 51.

The spelling of 56140543689 in words is "fifty-six billion, one hundred forty million, five hundred forty-three thousand, six hundred eighty-nine".