142805878734406 has 64 divisors (see below), whose sum is σ = 231514161379200. Its totient is φ = 65862308571136.

The previous prime is 142805878734209. The next prime is 142805878734457. The reversal of 142805878734406 is 604437878508241.

It is a super-2 number, since 2×142805878734406² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9265279956 + ... + 9265295368.

It is an arithmetic number, because the mean of its divisors is an integer number (3617408771550).

Almost surely, 2^{142805878734406} is an apocalyptic number.

142805878734406 is a deficient number, since it is larger than the sum of its proper divisors (88708282644794).

142805878734406 is a wasteful number, since it uses less digits than its factorization.

142805878734406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23553.

The product of its (nonzero) digits is 289013760, while the sum is 67.

The spelling of 142805878734406 in words is "one hundred forty-two trillion, eight hundred five billion, eight hundred seventy-eight million, seven hundred thirty-four thousand, four hundred six".