45444422242 has 4 divisors (see below), whose sum is σ = 68166633366. Its totient is φ = 22722211120.

The previous prime is 45444422227. The next prime is 45444422267. The reversal of 45444422242 is 24222444454.

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., 39160847881 + 6283574361 = 197891^2 + 79269^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11361105559 + ... + 11361105562.

Almost surely, 2^45444422242 is an apocalyptic number.

45444422242 is a deficient number, since it is larger than the sum of its proper divisors (22722211124).

45444422242 is a wasteful number, since it uses less digits than its factorization.

45444422242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22722211123.

The product of its digits is 327680, while the sum is 37.

Adding to 45444422242 its reverse (24222444454), we get a palindrome (69666866696).

The spelling of 45444422242 in words is "forty-five billion, four hundred forty-four million, four hundred twenty-two thousand, two hundred forty-two".