14851385478 has 40 divisors (see below), whose sum is σ = 33287724360. Its totient is φ = 4949030880.

The previous prime is 14851385467. The next prime is 14851385491. The reversal of 14851385478 is 87458315841.

14851385478 is a `hidden beast` number, since 1 + 4 + 8 + 513 + 8 + 54 + 78 = 666.

It is a super-2 number, since 2×14851385478² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 651538 + ... + 673946.

It is an arithmetic number, because the mean of its divisors is an integer number (832193109).

Almost surely, 2^14851385478 is an apocalyptic number.

14851385478 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

14851385478 is an abundant number, since it is smaller than the sum of its proper divisors (18436338882).

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

14851385478 is a wasteful number, since it uses less digits than its factorization.

14851385478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26514 (or 26505 counting only the distinct ones).

The product of its digits is 4300800, while the sum is 54.

The spelling of 14851385478 in words is "fourteen billion, eight hundred fifty-one million, three hundred eighty-five thousand, four hundred seventy-eight".