142001278568 has 32 divisors (see below), whose sum is σ = 270309856320. Its totient is φ = 69920928000.

The previous prime is 142001278567. The next prime is 142001278589. The reversal of 142001278568 is 865872100241.

It is a super-2 number, since 2×142001278568² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (142001278567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 358523 + ... + 642293.

It is an arithmetic number, because the mean of its divisors is an integer number (8447183010).

Almost surely, 2^142001278568 is an apocalyptic number.

It is an amenable number.

142001278568 is a deficient number, since it is larger than the sum of its proper divisors (128308577752).

142001278568 is a wasteful number, since it uses less digits than its factorization.

142001278568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284729 (or 284725 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 44.

The spelling of 142001278568 in words is "one hundred forty-two billion, one million, two hundred seventy-eight thousand, five hundred sixty-eight".