45240046216891 has 2 divisors, whose sum is σ = 45240046216892. Its totient is φ = 45240046216890.

The previous prime is 45240046216873. The next prime is 45240046216901. The reversal of 45240046216891 is 19861264004254.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45240046216891 - 2²⁵ = 45240012662459 is a prime.

It is not a weakly prime, because it can be changed into another prime (45240046216811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22620023108445 + 22620023108446.

It is an arithmetic number, because the mean of its divisors is an integer number (22620023108446).

Almost surely, 2^{45240046216891} is an apocalyptic number.

45240046216891 is a deficient number, since it is larger than the sum of its proper divisors (1).

45240046216891 is an equidigital number, since it uses as much as digits as its factorization.

45240046216891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3317760, while the sum is 52.

The spelling of 45240046216891 in words is "forty-five trillion, two hundred forty billion, forty-six million, two hundred sixteen thousand, eight hundred ninety-one".