14991009408 has 96 divisors (see below), whose sum is σ = 43424378400. Its totient is φ = 4963852800.

The previous prime is 14991009373. The next prime is 14991009493. The reversal of 14991009408 is 80490019941.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 130863 + ... + 217041.

It is an arithmetic number, because the mean of its divisors is an integer number (452337275).

Almost surely, 2^14991009408 is an apocalyptic number.

14991009408 is a gapful number since it is divisible by the number (18) 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 14991009408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21712189200).

14991009408 is an abundant number, since it is smaller than the sum of its proper divisors (28433368992).

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

14991009408 is a wasteful number, since it uses less digits than its factorization.

14991009408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86350 (or 86335 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 45.

The spelling of 14991009408 in words is "fourteen billion, nine hundred ninety-one million, nine thousand, four hundred eight".