445755250441442 has 4 divisors (see below), whose sum is σ = 668632875662166. Its totient is φ = 222877625220720.

The previous prime is 445755250441439. The next prime is 445755250441517. The reversal of 445755250441442 is 244144052557544.

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., 249143842372681 + 196611408068761 = 15784291^2 + 14021819^2 .

It is a super-2 number, since 2×445755250441442² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111438812610359 + ... + 111438812610362.

Almost surely, 2^{445755250441442} is an apocalyptic number.

445755250441442 is a deficient number, since it is larger than the sum of its proper divisors (222877625220724).

445755250441442 is a wasteful number, since it uses less digits than its factorization.

445755250441442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222877625220723.

The product of its (nonzero) digits is 71680000, while the sum is 56.

The spelling of 445755250441442 in words is "four hundred forty-five trillion, seven hundred fifty-five billion, two hundred fifty million, four hundred forty-one thousand, four hundred forty-two".