14750631821 has 4 divisors (see below), whose sum is σ = 14849629500. Its totient is φ = 14651634144.

The previous prime is 14750631811. The next prime is 14750631829. The reversal of 14750631821 is 12813605741.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7346889796 + 7403742025 = 85714^2 + 86045^2 .

It is a cyclic number.

It is not a de Polignac number, because 14750631821 - 2¹⁸ = 14750369677 is a prime.

It is a super-2 number, since 2×14750631821² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14750631829) 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, 49498616 + ... + 49498913.

It is an arithmetic number, because the mean of its divisors is an integer number (3712407375).

Almost surely, 2^14750631821 is an apocalyptic number.

It is an amenable number.

14750631821 is a deficient number, since it is larger than the sum of its proper divisors (98997679).

14750631821 is an equidigital number, since it uses as much as digits as its factorization.

14750631821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98997678.

The product of its (nonzero) digits is 40320, while the sum is 38.

The spelling of 14750631821 in words is "fourteen billion, seven hundred fifty million, six hundred thirty-one thousand, eight hundred twenty-one".