142681806788 has 12 divisors (see below), whose sum is σ = 255783239292. Its totient is φ = 69600881280.

The previous prime is 142681806727. The next prime is 142681806811. The reversal of 142681806788 is 887608186241.

It can be written as a sum of positive squares in 2 ways, for example, as 74418748804 + 68263057984 = 272798^2 + 261272^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 435005345 + ... + 435005672.

It is an arithmetic number, because the mean of its divisors is an integer number (21315269941).

Almost surely, 2^142681806788 is an apocalyptic number.

It is an amenable number.

142681806788 is a deficient number, since it is larger than the sum of its proper divisors (113101432504).

142681806788 is a wasteful number, since it uses less digits than its factorization.

142681806788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870011062 (or 870011060 counting only the distinct ones).

The product of its (nonzero) digits is 8257536, while the sum is 59.

The spelling of 142681806788 in words is "one hundred forty-two billion, six hundred eighty-one million, eight hundred six thousand, seven hundred eighty-eight".