142978691708 has 24 divisors (see below), whose sum is σ = 254380127232. Its totient is φ = 70302293424.

The previous prime is 142978691701. The next prime is 142978691747. The reversal of 142978691708 is 807196879241.

It is a happy number.

142978691708 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142978691701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 297116 + ... + 611747.

It is an arithmetic number, because the mean of its divisors is an integer number (10599171968).

Almost surely, 2^142978691708 is an apocalyptic number.

It is an amenable number.

142978691708 is a deficient number, since it is larger than the sum of its proper divisors (111401435524).

142978691708 is a wasteful number, since it uses less digits than its factorization.

142978691708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909521 (or 909519 counting only the distinct ones).

The product of its (nonzero) digits is 12192768, while the sum is 62.

The spelling of 142978691708 in words is "one hundred forty-two billion, nine hundred seventy-eight million, six hundred ninety-one thousand, seven hundred eight".