142787394512 has 40 divisors (see below), whose sum is σ = 316237176192. Its totient is φ = 61182000000.

The previous prime is 142787394481. The next prime is 142787394521. The reversal of 142787394512 is 215493787241.

It is a happy number.

It is a congruent number.

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, 425762 + ... + 683262.

Almost surely, 2^142787394512 is an apocalyptic number.

It is an amenable number.

142787394512 is an abundant number, since it is smaller than the sum of its proper divisors (173449781680).

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

142787394512 is a wasteful number, since it uses less digits than its factorization.

142787394512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262467 (or 262461 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 53.

The spelling of 142787394512 in words is "one hundred forty-two billion, seven hundred eighty-seven million, three hundred ninety-four thousand, five hundred twelve".