45490817953697 has 2 divisors, whose sum is σ = 45490817953698. Its totient is φ = 45490817953696.

The previous prime is 45490817953673. The next prime is 45490817953781. The reversal of 45490817953697 is 79635971809454.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43206484970896 + 2284332982801 = 6573164^2 + 1511401^2 .

It is a cyclic number.

It is not a de Polignac number, because 45490817953697 - 2⁴⁰ = 44391306325921 is a prime.

It is not a weakly prime, because it can be changed into another prime (45490817053697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22745408976848 + 22745408976849.

It is an arithmetic number, because the mean of its divisors is an integer number (22745408976849).

Almost surely, 2^{45490817953697} is an apocalyptic number.

It is an amenable number.

45490817953697 is a deficient number, since it is larger than the sum of its proper divisors (1).

45490817953697 is an equidigital number, since it uses as much as digits as its factorization.

45490817953697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2057529600, while the sum is 77.

The spelling of 45490817953697 in words is "forty-five trillion, four hundred ninety billion, eight hundred seventeen million, nine hundred fifty-three thousand, six hundred ninety-seven".