56729181599 has 4 divisors (see below), whose sum is σ = 58048464936. Its totient is φ = 55409898264.

The previous prime is 56729181583. The next prime is 56729181617. The reversal of 56729181599 is 99518192765.

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

It is a cyclic number.

It is not a de Polignac number, because 56729181599 - 2⁴ = 56729181583 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 (56729181799) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 659641604 + ... + 659641689.

It is an arithmetic number, because the mean of its divisors is an integer number (14512116234).

Almost surely, 2^56729181599 is an apocalyptic number.

56729181599 is a deficient number, since it is larger than the sum of its proper divisors (1319283337).

56729181599 is a wasteful number, since it uses less digits than its factorization.

56729181599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1319283336.

The product of its digits is 12247200, while the sum is 62.

It can be divided in two parts, 56729 and 181599, that added together give a cube (238328 = 62³).

The spelling of 56729181599 in words is "fifty-six billion, seven hundred twenty-nine million, one hundred eighty-one thousand, five hundred ninety-nine".