12881115442 has 48 divisors (see below), whose sum is σ = 21772022400. Its totient is φ = 5708479296.

The previous prime is 12881115413. The next prime is 12881115463. The reversal of 12881115442 is 24451118821.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 834309 + ... + 849607.

It is an arithmetic number, because the mean of its divisors is an integer number (453583800).

Almost surely, 2^12881115442 is an apocalyptic number.

12881115442 is a deficient number, since it is larger than the sum of its proper divisors (8890906958).

12881115442 is a wasteful number, since it uses less digits than its factorization.

12881115442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15427 (or 15414 counting only the distinct ones).

The product of its digits is 20480, while the sum is 37.

The spelling of 12881115442 in words is "twelve billion, eight hundred eighty-one million, one hundred fifteen thousand, four hundred forty-two".