14881187639 has 2 divisors, whose sum is σ = 14881187640. Its totient is φ = 14881187638.

The previous prime is 14881187627. The next prime is 14881187653. The reversal of 14881187639 is 93678118841.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 14881187639 - 2¹⁶ = 14881122103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14881187669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7440593819 + 7440593820.

It is an arithmetic number, because the mean of its divisors is an integer number (7440593820).

Almost surely, 2^14881187639 is an apocalyptic number.

14881187639 is a deficient number, since it is larger than the sum of its proper divisors (1).

14881187639 is an equidigital number, since it uses as much as digits as its factorization.

14881187639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2322432, while the sum is 56.

The spelling of 14881187639 in words is "fourteen billion, eight hundred eighty-one million, one hundred eighty-seven thousand, six hundred thirty-nine".