18475427456 has 32 divisors (see below), whose sum is σ = 36991524000. Its totient is φ = 9191280384.

The previous prime is 18475427441. The next prime is 18475427471. The reversal of 18475427456 is 65472457481.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (18475427441) and next prime (18475427471).

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 18475427398 and 18475427407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 337190 + ... + 388133.

It is an arithmetic number, because the mean of its divisors is an integer number (1155985125).

Almost surely, 2^18475427456 is an apocalyptic number.

18475427456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18475427456 is an abundant number, since it is smaller than the sum of its proper divisors (18516096544).

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

18475427456 is an equidigital number, since it uses as much as digits as its factorization.

18475427456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 725536 (or 725524 counting only the distinct ones).

The product of its digits is 7526400, while the sum is 53.

The spelling of 18475427456 in words is "eighteen billion, four hundred seventy-five million, four hundred twenty-seven thousand, four hundred fifty-six".