13247231964987 has 32 divisors (see below), whose sum is σ = 18159639886080. Its totient is φ = 8583668668800.

The previous prime is 13247231964983. The next prime is 13247231965003. The reversal of 13247231964987 is 78946913274231.

13247231964987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13247231964987 - 2² = 13247231964983 is a prime.

It is a Smith number, since the sum of its digits (66) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (13247231964983) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 417574908 + ... + 417606630.

It is an arithmetic number, because the mean of its divisors is an integer number (567488746440).

Almost surely, 2^{13247231964987} is an apocalyptic number.

13247231964987 is a deficient number, since it is larger than the sum of its proper divisors (4912407921093).

13247231964987 is a wasteful number, since it uses less digits than its factorization.

13247231964987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35643.

The product of its digits is 109734912, while the sum is 66.

The spelling of 13247231964987 in words is "thirteen trillion, two hundred forty-seven billion, two hundred thirty-one million, nine hundred sixty-four thousand, nine hundred eighty-seven".