140768335805 has 16 divisors (see below), whose sum is σ = 176293352880. Its totient is φ = 107769166848.

The previous prime is 140768335793. The next prime is 140768335859. The reversal of 140768335805 is 508533867041.

It can be written as a sum of positive squares in 8 ways, for example, as 36000888121 + 104767447684 = 189739^2 + 323678^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140768335805 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4279262 + ... + 4312031.

It is an arithmetic number, because the mean of its divisors is an integer number (11018334555).

Almost surely, 2^140768335805 is an apocalyptic number.

It is an amenable number.

140768335805 is a deficient number, since it is larger than the sum of its proper divisors (35525017075).

140768335805 is a wasteful number, since it uses less digits than its factorization.

140768335805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8591440.

The product of its (nonzero) digits is 2419200, while the sum is 50.

The spelling of 140768335805 in words is "one hundred forty billion, seven hundred sixty-eight million, three hundred thirty-five thousand, eight hundred five".