142484567077681 has 4 divisors (see below), whose sum is σ = 142484914793572. Its totient is φ = 142484219361792.

The previous prime is 142484567077673. The next prime is 142484567077733. The reversal of 142484567077681 is 186770765484241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 124482196951281 + 18002370126400 = 11157159^2 + 4242920^2 .

It is a cyclic number.

It is not a de Polignac number, because 142484567077681 - 2³ = 142484567077673 is a prime.

It is a super-2 number, since 2×142484567077681² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 142484567077681.

It is not an unprimeable number, because it can be changed into a prime (142484567077481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173242560 + ... + 174063073.

It is an arithmetic number, because the mean of its divisors is an integer number (35621228698393).

Almost surely, 2^{142484567077681} is an apocalyptic number.

It is an amenable number.

142484567077681 is a deficient number, since it is larger than the sum of its proper divisors (347715891).

142484567077681 is an equidigital number, since it uses as much as digits as its factorization.

142484567077681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347715890.

The product of its (nonzero) digits is 505774080, while the sum is 70.

The spelling of 142484567077681 in words is "one hundred forty-two trillion, four hundred eighty-four billion, five hundred sixty-seven million, seventy-seven thousand, six hundred eighty-one".