445497072773 has 2 divisors, whose sum is σ = 445497072774. Its totient is φ = 445497072772.

The previous prime is 445497072749. The next prime is 445497072829. The reversal of 445497072773 is 377270794544.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 328051726564 + 117445346209 = 572758^2 + 342703^2 .

It is a cyclic number.

It is not a de Polignac number, because 445497072773 - 2²² = 445492878469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (445497072733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222748536386 + 222748536387.

It is an arithmetic number, because the mean of its divisors is an integer number (222748536387).

Almost surely, 2^445497072773 is an apocalyptic number.

It is an amenable number.

445497072773 is a deficient number, since it is larger than the sum of its proper divisors (1).

445497072773 is an equidigital number, since it uses as much as digits as its factorization.

445497072773 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41489280, while the sum is 59.

The spelling of 445497072773 in words is "four hundred forty-five billion, four hundred ninety-seven million, seventy-two thousand, seven hundred seventy-three".