18153941472 has 36 divisors (see below), whose sum is σ = 51625271880. Its totient is φ = 6051313728.

The previous prime is 18153941461. The next prime is 18153941599. The reversal of 18153941472 is 27414935181.

18153941472 is a `hidden beast` number, since 1 + 8 + 1 + 539 + 41 + 4 + 72 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 31516972 + ... + 31517547.

It is an arithmetic number, because the mean of its divisors is an integer number (1434035330).

Almost surely, 2^18153941472 is an apocalyptic number.

18153941472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18153941472 is an abundant number, since it is smaller than the sum of its proper divisors (33471330408).

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

18153941472 is a wasteful number, since it uses less digits than its factorization.

18153941472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63034535 (or 63034524 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The spelling of 18153941472 in words is "eighteen billion, one hundred fifty-three million, nine hundred forty-one thousand, four hundred seventy-two".