56814673391 has 8 divisors (see below), whose sum is σ = 65442324480. Its totient is φ = 48314839608.

The previous prime is 56814673367. The next prime is 56814673403. The reversal of 56814673391 is 19337641865.

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

It is not a de Polignac number, because 56814673391 - 2⁶ = 56814673327 is a prime.

It is a super-2 number, since 2×56814673391² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56814679391) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 31953371 + ... + 31955148.

It is an arithmetic number, because the mean of its divisors is an integer number (8180290560).

Almost surely, 2^56814673391 is an apocalyptic number.

56814673391 is a deficient number, since it is larger than the sum of its proper divisors (8627651089).

56814673391 is a wasteful number, since it uses less digits than its factorization.

56814673391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63908653.

The product of its digits is 3265920, while the sum is 53.

The spelling of 56814673391 in words is "fifty-six billion, eight hundred fourteen million, six hundred seventy-three thousand, three hundred ninety-one".