115644563963 has 2 divisors, whose sum is σ = 115644563964. Its totient is φ = 115644563962.

The previous prime is 115644563927. The next prime is 115644564031. The reversal of 115644563963 is 369365446511.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 115644563963 - 2¹⁶ = 115644498427 is a prime.

It is not a weakly prime, because it can be changed into another prime (115644563663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57822281981 + 57822281982.

It is an arithmetic number, because the mean of its divisors is an integer number (57822281982).

Almost surely, 2^115644563963 is an apocalyptic number.

115644563963 is a deficient number, since it is larger than the sum of its proper divisors (1).

115644563963 is an equidigital number, since it uses as much as digits as its factorization.

115644563963 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6998400, while the sum is 53.

The spelling of 115644563963 in words is "one hundred fifteen billion, six hundred forty-four million, five hundred sixty-three thousand, nine hundred sixty-three".