14491251681 has 16 divisors (see below), whose sum is σ = 19598969856. Its totient is φ = 9522354816.

The previous prime is 14491251631. The next prime is 14491251689. The reversal of 14491251681 is 18615219441.

It is not a de Polignac number, because 14491251681 - 2⁶ = 14491251617 is a prime.

It is a super-2 number, since 2×14491251681² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (14491251689) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 332736 + ... + 373758.

It is an arithmetic number, because the mean of its divisors is an integer number (1224935616).

Almost surely, 2^14491251681 is an apocalyptic number.

It is an amenable number.

14491251681 is a deficient number, since it is larger than the sum of its proper divisors (5107718175).

14491251681 is a wasteful number, since it uses less digits than its factorization.

14491251681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42712.

The product of its digits is 69120, while the sum is 42.

The spelling of 14491251681 in words is "fourteen billion, four hundred ninety-one million, two hundred fifty-one thousand, six hundred eighty-one".