56893473389 has 2 divisors, whose sum is σ = 56893473390. Its totient is φ = 56893473388.

The previous prime is 56893473383. The next prime is 56893473397. The reversal of 56893473389 is 98337439865.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53696475625 + 3196997764 = 231725^2 + 56542^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56893473389 is a prime.

It is a super-2 number, since 2×56893473389² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56893473383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28446736694 + 28446736695.

It is an arithmetic number, because the mean of its divisors is an integer number (28446736695).

Almost surely, 2^56893473389 is an apocalyptic number.

It is an amenable number.

56893473389 is a deficient number, since it is larger than the sum of its proper divisors (1).

56893473389 is an equidigital number, since it uses as much as digits as its factorization.

56893473389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 117573120, while the sum is 65.

The spelling of 56893473389 in words is "fifty-six billion, eight hundred ninety-three million, four hundred seventy-three thousand, three hundred eighty-nine".