45721604444773 has 2 divisors, whose sum is σ = 45721604444774. Its totient is φ = 45721604444772.

The previous prime is 45721604444771. The next prime is 45721604444801. The reversal of 45721604444773 is 37744440612754.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27635449705249 + 18086154739524 = 5256943^2 + 4252782^2 .

It is a cyclic number.

It is not a de Polignac number, because 45721604444773 - 2¹ = 45721604444771 is a prime.

It is a super-2 number, since 2×45721604444773² (a number of 28 digits) contains 22 as substring.

Together with 45721604444771, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45721604444771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22860802222386 + 22860802222387.

It is an arithmetic number, because the mean of its divisors is an integer number (22860802222387).

Almost surely, 2^{45721604444773} is an apocalyptic number.

It is an amenable number.

45721604444773 is a deficient number, since it is larger than the sum of its proper divisors (1).

45721604444773 is an equidigital number, since it uses as much as digits as its factorization.

45721604444773 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63221760, while the sum is 58.

The spelling of 45721604444773 in words is "forty-five trillion, seven hundred twenty-one billion, six hundred four million, four hundred forty-four thousand, seven hundred seventy-three".