13896345587 has 2 divisors, whose sum is σ = 13896345588. Its totient is φ = 13896345586.

The previous prime is 13896345577. The next prime is 13896345601. The reversal of 13896345587 is 78554369831.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13896345587 - 2¹² = 13896341491 is a prime.

It is not a weakly prime, because it can be changed into another prime (13896345577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6948172793 + 6948172794.

It is an arithmetic number, because the mean of its divisors is an integer number (6948172794).

Almost surely, 2^13896345587 is an apocalyptic number.

13896345587 is a deficient number, since it is larger than the sum of its proper divisors (1).

13896345587 is an equidigital number, since it uses as much as digits as its factorization.

13896345587 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21772800, while the sum is 59.

The spelling of 13896345587 in words is "thirteen billion, eight hundred ninety-six million, three hundred forty-five thousand, five hundred eighty-seven".