18954208622 has 8 divisors (see below), whose sum is σ = 28432446336. Its totient is φ = 9476726512.

The previous prime is 18954208619. The next prime is 18954208627. The reversal of 18954208622 is 22680245981.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18954208627) 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, 121358 + ... + 229425.

It is an arithmetic number, because the mean of its divisors is an integer number (3554055792).

Almost surely, 2^18954208622 is an apocalyptic number.

18954208622 is a deficient number, since it is larger than the sum of its proper divisors (9478237714).

18954208622 is a wasteful number, since it uses less digits than its factorization.

18954208622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377802.

The product of its (nonzero) digits is 552960, while the sum is 47.

The spelling of 18954208622 in words is "eighteen billion, nine hundred fifty-four million, two hundred eight thousand, six hundred twenty-two".