14428721571523 has 32 divisors (see below), whose sum is σ = 17790579532800. Its totient is φ = 11432786808960.

The previous prime is 14428721571487. The next prime is 14428721571547. The reversal of 14428721571523 is 32517512782441.

It is not a de Polignac number, because 14428721571523 - 2²⁵ = 14428688017091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14428721571923) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7240413 + ... + 9015598.

It is an arithmetic number, because the mean of its divisors is an integer number (555955610400).

Almost surely, 2^{14428721571523} is an apocalyptic number.

14428721571523 is a deficient number, since it is larger than the sum of its proper divisors (3361857961277).

14428721571523 is a wasteful number, since it uses less digits than its factorization.

14428721571523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16256227.

The product of its digits is 3763200, while the sum is 52.

The spelling of 14428721571523 in words is "fourteen trillion, four hundred twenty-eight billion, seven hundred twenty-one million, five hundred seventy-one thousand, five hundred twenty-three".