14891544879457 has 8 divisors (see below), whose sum is σ = 14967955344384. Its totient is φ = 14815220417088.

The previous prime is 14891544879389. The next prime is 14891544879467. The reversal of 14891544879457 is 75497844519841.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 14891544879457 - 2¹¹ = 14891544877409 is a prime.

It is a super-2 number, since 2×14891544879457² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14891544879467) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21153433 + ... + 21846070.

It is an arithmetic number, because the mean of its divisors is an integer number (1870994418048).

Almost surely, 2^{14891544879457} is an apocalyptic number.

It is an amenable number.

14891544879457 is a deficient number, since it is larger than the sum of its proper divisors (76410464927).

14891544879457 is a wasteful number, since it uses less digits than its factorization.

14891544879457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43001279.

The product of its digits is 1625702400, while the sum is 76.

The spelling of 14891544879457 in words is "fourteen trillion, eight hundred ninety-one billion, five hundred forty-four million, eight hundred seventy-nine thousand, four hundred fifty-seven".