56840437534 has 4 divisors (see below), whose sum is σ = 85260656304. Its totient is φ = 28420218766.

The previous prime is 56840437519. The next prime is 56840437547. The reversal of 56840437534 is 43573404865.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14210109382 + ... + 14210109385.

It is an arithmetic number, because the mean of its divisors is an integer number (21315164076).

Almost surely, 2^56840437534 is an apocalyptic number.

56840437534 is a deficient number, since it is larger than the sum of its proper divisors (28420218770).

56840437534 is a wasteful number, since it uses less digits than its factorization.

56840437534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28420218769.

The product of its (nonzero) digits is 4838400, while the sum is 49.

The spelling of 56840437534 in words is "fifty-six billion, eight hundred forty million, four hundred thirty-seven thousand, five hundred thirty-four".