12965187563433 has 112 divisors (see below), whose sum is σ = 22768127356800. Its totient is φ = 7224675068160.

The previous prime is 12965187563407. The next prime is 12965187563441. The reversal of 12965187563433 is 33436578156921.

It is a happy number.

12965187563433 is a `hidden beast` number, since 1 + 2 + 9 + 6 + 518 + 7 + 56 + 34 + 33 = 666.

It is not a de Polignac number, because 12965187563433 - 2¹³ = 12965187555241 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (12965187563033) by changing a digit.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 499820778 + ... + 499846716.

It is an arithmetic number, because the mean of its divisors is an integer number (203286851400).

Almost surely, 2^{12965187563433} is an apocalyptic number.

It is an amenable number.

12965187563433 is a deficient number, since it is larger than the sum of its proper divisors (9802939793367).

12965187563433 is an equidigital number, since it uses as much as digits as its factorization.

12965187563433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28394 (or 28379 counting only the distinct ones).

The product of its digits is 97977600, while the sum is 63.

The spelling of 12965187563433 in words is "twelve trillion, nine hundred sixty-five billion, one hundred eighty-seven million, five hundred sixty-three thousand, four hundred thirty-three".