14350972681 has 4 divisors (see below), whose sum is σ = 14352301264. Its totient is φ = 14349644100.

The previous prime is 14350972679. The next prime is 14350972709. The reversal of 14350972681 is 18627905341.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 18627905341 = 13729 ⋅1356829.

It is a 3-Lehmer number, since φ(14350972681) divides (14350972681-1)³.

It is a cyclic number.

It is not a de Polignac number, because 14350972681 - 2¹ = 14350972679 is a prime.

It is a super-2 number, since 2×14350972681² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14350972081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 647955 + ... + 669736.

It is an arithmetic number, because the mean of its divisors is an integer number (3588075316).

It is a 2-persistent number, because it is pandigital, and so is 2⋅14350972681 = 28701945362, but 3⋅14350972681 = 43052918043 is not.

Almost surely, 2^14350972681 is an apocalyptic number.

It is an amenable number.

14350972681 is a deficient number, since it is larger than the sum of its proper divisors (1328583).

14350972681 is a wasteful number, since it uses less digits than its factorization.

14350972681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1328582.

The product of its (nonzero) digits is 362880, while the sum is 46.

The spelling of 14350972681 in words is "fourteen billion, three hundred fifty million, nine hundred seventy-two thousand, six hundred eighty-one".