142642571172 has 24 divisors (see below), whose sum is σ = 335227149600. Its totient is φ = 47205454656.

The previous prime is 142642571167. The next prime is 142642571219. The reversal of 142642571172 is 271175246241.

It is a super-2 number, since 2×142642571172² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

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, 42756897 + ... + 42760232.

It is an arithmetic number, because the mean of its divisors is an integer number (13967797900).

Almost surely, 2^142642571172 is an apocalyptic number.

142642571172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

142642571172 is an abundant number, since it is smaller than the sum of its proper divisors (192584578428).

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

142642571172 is a wasteful number, since it uses less digits than its factorization.

142642571172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85517275 (or 85517273 counting only the distinct ones).

The product of its digits is 188160, while the sum is 42.

The spelling of 142642571172 in words is "one hundred forty-two billion, six hundred forty-two million, five hundred seventy-one thousand, one hundred seventy-two".