56142213118891 has 2 divisors, whose sum is σ = 56142213118892. Its totient is φ = 56142213118890.

The previous prime is 56142213118883. The next prime is 56142213118907. The reversal of 56142213118891 is 19881131224165.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56142213118891 - 2³ = 56142213118883 is a prime.

It is not a weakly prime, because it can be changed into another prime (56142213118091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28071106559445 + 28071106559446.

It is an arithmetic number, because the mean of its divisors is an integer number (28071106559446).

Almost surely, 2^{56142213118891} is an apocalyptic number.

56142213118891 is a deficient number, since it is larger than the sum of its proper divisors (1).

56142213118891 is an equidigital number, since it uses as much as digits as its factorization.

56142213118891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 829440, while the sum is 52.

The spelling of 56142213118891 in words is "fifty-six trillion, one hundred forty-two billion, two hundred thirteen million, one hundred eighteen thousand, eight hundred ninety-one".