55841868791 has 2 divisors, whose sum is σ = 55841868792. Its totient is φ = 55841868790.

The previous prime is 55841868781. The next prime is 55841868829. The reversal of 55841868791 is 19786814855.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55841868791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55841868781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27920934395 + 27920934396.

It is an arithmetic number, because the mean of its divisors is an integer number (27920934396).

Almost surely, 2^55841868791 is an apocalyptic number.

55841868791 is a deficient number, since it is larger than the sum of its proper divisors (1).

55841868791 is an equidigital number, since it uses as much as digits as its factorization.

55841868791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19353600, while the sum is 62.

The spelling of 55841868791 in words is "fifty-five billion, eight hundred forty-one million, eight hundred sixty-eight thousand, seven hundred ninety-one".