14457599778 has 32 divisors (see below), whose sum is σ = 29076364800. Its totient is φ = 4792386816.

The previous prime is 14457599759. The next prime is 14457599791. The reversal of 14457599778 is 87799575441.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1344688 + ... + 1355396.

It is an arithmetic number, because the mean of its divisors is an integer number (908636400).

Almost surely, 2^14457599778 is an apocalyptic number.

14457599778 is an abundant number, since it is smaller than the sum of its proper divisors (14618765022).

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

14457599778 is a wasteful number, since it uses less digits than its factorization.

14457599778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11946.

The product of its digits is 88905600, while the sum is 66.

The spelling of 14457599778 in words is "fourteen billion, four hundred fifty-seven million, five hundred ninety-nine thousand, seven hundred seventy-eight".