18742901446 has 8 divisors (see below), whose sum is σ = 28115160984. Its totient is φ = 9371181120.

The previous prime is 18742901431. The next prime is 18742901449. The reversal of 18742901446 is 64410924781.

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

It is a super-2 number, since 2×18742901446² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18742901396 and 18742901405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18742901449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32320 + ... + 196291.

It is an arithmetic number, because the mean of its divisors is an integer number (3514395123).

Almost surely, 2^18742901446 is an apocalyptic number.

18742901446 is a deficient number, since it is larger than the sum of its proper divisors (9372259538).

18742901446 is a wasteful number, since it uses less digits than its factorization.

18742901446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269606.

The product of its (nonzero) digits is 387072, while the sum is 46.

The spelling of 18742901446 in words is "eighteen billion, seven hundred forty-two million, nine hundred one thousand, four hundred forty-six".