12981533802 has 16 divisors (see below), whose sum is σ = 25965827040. Its totient is φ = 4326718032.

The previous prime is 12981533801. The next prime is 12981533843. The reversal of 12981533802 is 20833518921.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12981533801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51088 + ... + 169035.

It is an arithmetic number, because the mean of its divisors is an integer number (1622864190).

Almost surely, 2^12981533802 is an apocalyptic number.

12981533802 is an abundant number, since it is smaller than the sum of its proper divisors (12984293238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12981533802 is a wasteful number, since it uses less digits than its factorization.

12981533802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229957.

The product of its (nonzero) digits is 103680, while the sum is 42.

The spelling of 12981533802 in words is "twelve billion, nine hundred eighty-one million, five hundred thirty-three thousand, eight hundred two".