142243458687 has 24 divisors (see below), whose sum is σ = 225568883280. Its totient is φ = 85659050880.

The previous prime is 142243458683. The next prime is 142243458703. The reversal of 142243458687 is 786854342241.

142243458687 is a `hidden beast` number, since 1 + 4 + 2 + 24 + 34 + 586 + 8 + 7 = 666.

It is not a de Polignac number, because 142243458687 - 2² = 142243458683 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142243458683) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4560262 + ... + 4591347.

It is an arithmetic number, because the mean of its divisors is an integer number (9398703470).

Almost surely, 2^142243458687 is an apocalyptic number.

142243458687 is a deficient number, since it is larger than the sum of its proper divisors (83325424593).

142243458687 is a wasteful number, since it uses less digits than its factorization.

142243458687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9151783 (or 9151780 counting only the distinct ones).

The product of its digits is 10321920, while the sum is 54.

The spelling of 142243458687 in words is "one hundred forty-two billion, two hundred forty-three million, four hundred fifty-eight thousand, six hundred eighty-seven".