140173242235643 has 32 divisors (see below), whose sum is σ = 149111168274432. Its totient is φ = 131597665977600.

The previous prime is 140173242235591. The next prime is 140173242235657. The reversal of 140173242235643 is 346532242371041.

It is a cyclic number.

It is not a de Polignac number, because 140173242235643 - 2³⁴ = 140156062366459 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140173242235673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 293981930 + ... + 294458352.

It is an arithmetic number, because the mean of its divisors is an integer number (4659724008576).

Almost surely, 2^{140173242235643} is an apocalyptic number.

140173242235643 is a deficient number, since it is larger than the sum of its proper divisors (8937926038789).

140173242235643 is a wasteful number, since it uses less digits than its factorization.

140173242235643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479075.

The product of its (nonzero) digits is 2903040, while the sum is 47.

The spelling of 140173242235643 in words is "one hundred forty trillion, one hundred seventy-three billion, two hundred forty-two million, two hundred thirty-five thousand, six hundred forty-three".