142893894442 has 16 divisors (see below), whose sum is σ = 231333713352. Its totient is φ = 65806709760.

The previous prime is 142893894413. The next prime is 142893894463. The reversal of 142893894442 is 244498398241.

It can be written as a sum of positive squares in 4 ways, for example, as 131376526681 + 11517367761 = 362459^2 + 107319^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6001159 + ... + 6024922.

Almost surely, 2^142893894442 is an apocalyptic number.

142893894442 is a deficient number, since it is larger than the sum of its proper divisors (88439818910).

142893894442 is a wasteful number, since it uses less digits than its factorization.

142893894442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12026553.

The product of its digits is 15925248, while the sum is 58.

The spelling of 142893894442 in words is "one hundred forty-two billion, eight hundred ninety-three million, eight hundred ninety-four thousand, four hundred forty-two".