14945978280 has 128 divisors (see below), whose sum is σ = 45341700480. Its totient is φ = 3940961280.

The previous prime is 14945978273. The next prime is 14945978297. The reversal of 14945978280 is 8287954941.

It is a self number, because there is not a number n which added to its sum of digits gives 14945978280.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12081822 + ... + 12083058.

It is an arithmetic number, because the mean of its divisors is an integer number (354232035).

Almost surely, 2^14945978280 is an apocalyptic number.

14945978280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 14945978280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22670850240).

14945978280 is an abundant number, since it is smaller than the sum of its proper divisors (30395722200).

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

14945978280 is a wasteful number, since it uses less digits than its factorization.

14945978280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2299 (or 2295 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 57.

The spelling of 14945978280 in words is "fourteen billion, nine hundred forty-five million, nine hundred seventy-eight thousand, two hundred eighty".