143640356312442 has 32 divisors (see below), whose sum is σ = 313398312721344. Its totient is φ = 43527217968000.

The previous prime is 143640356312441. The next prime is 143640356312507. The reversal of 143640356312442 is 244213653046341.

It is a junction number, because it is equal to n+sod(n) for n = 143640356312391 and 143640356312400.

It is not an unprimeable number, because it can be changed into a prime (143640356312441) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 14345598 + ... + 22205334.

It is an arithmetic number, because the mean of its divisors is an integer number (9793697272542).

Almost surely, 2^{143640356312442} is an apocalyptic number.

143640356312442 is an abundant number, since it is smaller than the sum of its proper divisors (169757956408902).

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

143640356312442 is a wasteful number, since it uses less digits than its factorization.

143640356312442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8136654.

The product of its (nonzero) digits is 4976640, while the sum is 48.

The spelling of 143640356312442 in words is "one hundred forty-three trillion, six hundred forty billion, three hundred fifty-six million, three hundred twelve thousand, four hundred forty-two".