142781263788 has 12 divisors (see below), whose sum is σ = 333156282200. Its totient is φ = 47593754592.

The previous prime is 142781263787. The next prime is 142781263829. The reversal of 142781263788 is 887362187241.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (142781263787) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5949219313 + ... + 5949219336.

Almost surely, 2^142781263788 is an apocalyptic number.

It is an amenable number.

142781263788 is an abundant number, since it is smaller than the sum of its proper divisors (190375018412).

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

142781263788 is a wasteful number, since it uses less digits than its factorization.

142781263788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11898438656 (or 11898438654 counting only the distinct ones).

The product of its digits is 7225344, while the sum is 57.

The spelling of 142781263788 in words is "one hundred forty-two billion, seven hundred eighty-one million, two hundred sixty-three thousand, seven hundred eighty-eight".