140075238779 has 16 divisors (see below), whose sum is σ = 168524554752. Its totient is φ = 113827959168.

The previous prime is 140075238769. The next prime is 140075238803. The reversal of 140075238779 is 977832570041.

It is a de Polignac number, because none of the positive numbers 2^k-140075238779 is a prime.

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 140075238779.

It is not an unprimeable number, because it can be changed into a prime (140075238739) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3831509 + ... + 3867894.

It is an arithmetic number, because the mean of its divisors is an integer number (10532784672).

Almost surely, 2^140075238779 is an apocalyptic number.

140075238779 is a deficient number, since it is larger than the sum of its proper divisors (28449315973).

140075238779 is a wasteful number, since it uses less digits than its factorization.

140075238779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7699546.

The product of its (nonzero) digits is 2963520, while the sum is 53.

The spelling of 140075238779 in words is "one hundred forty billion, seventy-five million, two hundred thirty-eight thousand, seven hundred seventy-nine".