18445601822 has 8 divisors (see below), whose sum is σ = 27677143200. Its totient is φ = 9219887424.

The previous prime is 18445601813. The next prime is 18445601827. The reversal of 18445601822 is 22810654481.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 18445601822.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18445601827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1448822 + ... + 1461497.

It is an arithmetic number, because the mean of its divisors is an integer number (3459642900).

Almost surely, 2^18445601822 is an apocalyptic number.

18445601822 is a deficient number, since it is larger than the sum of its proper divisors (9231541378).

18445601822 is a wasteful number, since it uses less digits than its factorization.

18445601822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2913490.

The product of its (nonzero) digits is 122880, while the sum is 41.

The spelling of 18445601822 in words is "eighteen billion, four hundred forty-five million, six hundred one thousand, eight hundred twenty-two".