445540836722 has 4 divisors (see below), whose sum is σ = 668311255086. Its totient is φ = 222770418360.

The previous prime is 445540836679. The next prime is 445540836809. The reversal of 445540836722 is 227638045544.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 333020172241 + 112520664481 = 577079^2 + 335441^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111385209179 + ... + 111385209182.

Almost surely, 2^445540836722 is an apocalyptic number.

445540836722 is a deficient number, since it is larger than the sum of its proper divisors (222770418364).

445540836722 is a wasteful number, since it uses less digits than its factorization.

445540836722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222770418363.

The product of its (nonzero) digits is 6451200, while the sum is 50.

The spelling of 445540836722 in words is "four hundred forty-five billion, five hundred forty million, eight hundred thirty-six thousand, seven hundred twenty-two".