14745311641 has 4 divisors (see below), whose sum is σ = 15612682932. Its totient is φ = 13877940352.

The previous prime is 14745311639. The next prime is 14745311719. The reversal of 14745311641 is 14611354741.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14611354741 = 233 ⋅62709677.

It can be written as a sum of positive squares in 2 ways, for example, as 8211984400 + 6533327241 = 90620^2 + 80829^2 .

It is a cyclic number.

It is not a de Polignac number, because 14745311641 - 2¹ = 14745311639 is a prime.

It is a super-2 number, since 2×14745311641² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 14745311641.

It is not an unprimeable number, because it can be changed into a prime (14745311621) 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, 433685620 + ... + 433685653.

It is an arithmetic number, because the mean of its divisors is an integer number (3903170733).

Almost surely, 2^14745311641 is an apocalyptic number.

It is an amenable number.

14745311641 is a deficient number, since it is larger than the sum of its proper divisors (867371291).

14745311641 is an equidigital number, since it uses as much as digits as its factorization.

14745311641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867371290.

The product of its digits is 40320, while the sum is 37.

The spelling of 14745311641 in words is "fourteen billion, seven hundred forty-five million, three hundred eleven thousand, six hundred forty-one".