142438786506 has 96 divisors (see below), whose sum is σ = 316527644160. Its totient is φ = 46280512512.

The previous prime is 142438786493. The next prime is 142438786549. The reversal of 142438786506 is 605687834241.

It is a happy number.

142438786506 is a `hidden beast` number, since 1 + 4 + 24 + 38 + 7 + 86 + 506 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 69379776 + ... + 69381828.

It is an arithmetic number, because the mean of its divisors is an integer number (3297162960).

Almost surely, 2^142438786506 is an apocalyptic number.

142438786506 is an abundant number, since it is smaller than the sum of its proper divisors (174088857654).

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

142438786506 is a wasteful number, since it uses less digits than its factorization.

142438786506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2740 (or 2737 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 54.

The spelling of 142438786506 in words is "one hundred forty-two billion, four hundred thirty-eight million, seven hundred eighty-six thousand, five hundred six".