56019308313891 has 16 divisors (see below), whose sum is σ = 81189738008064. Its totient is φ = 34151238998304.

The previous prime is 56019308313889. The next prime is 56019308313901. The reversal of 56019308313891 is 19831380391065.

It is not a de Polignac number, because 56019308313891 - 2¹ = 56019308313889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56019308313841) 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, 6712110411 + ... + 6712118756.

It is an arithmetic number, because the mean of its divisors is an integer number (5074358625504).

Almost surely, 2^{56019308313891} is an apocalyptic number.

56019308313891 is a deficient number, since it is larger than the sum of its proper divisors (25170429694173).

56019308313891 is a wasteful number, since it uses less digits than its factorization.

56019308313891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13424229290.

The product of its (nonzero) digits is 4199040, while the sum is 57.

The spelling of 56019308313891 in words is "fifty-six trillion, nineteen billion, three hundred eight million, three hundred thirteen thousand, eight hundred ninety-one".