18454148108 has 24 divisors (see below), whose sum is σ = 37303038864. Its totient is φ = 7894822400.

The previous prime is 18454148081. The next prime is 18454148129. The reversal of 18454148108 is 80184145481.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12334913 + ... + 12336408.

It is an arithmetic number, because the mean of its divisors is an integer number (1554293286).

Almost surely, 2^18454148108 is an apocalyptic number.

It is an amenable number.

18454148108 is an abundant number, since it is smaller than the sum of its proper divisors (18848890756).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18454148108 is a wasteful number, since it uses less digits than its factorization.

18454148108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24671353 (or 24671351 counting only the distinct ones).

The product of its (nonzero) digits is 163840, while the sum is 44.

The spelling of 18454148108 in words is "eighteen billion, four hundred fifty-four million, one hundred forty-eight thousand, one hundred eight".