140444264647 has 4 divisors (see below), whose sum is σ = 141756827976. Its totient is φ = 139131701320.

The previous prime is 140444264641. The next prime is 140444264659. The reversal of 140444264647 is 746462444041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 746462444041 = 127219 ⋅5867539.

It is a cyclic number.

It is not a de Polignac number, because 140444264647 - 2³⁵ = 106084526279 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 140444264597 and 140444264606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140444264641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 656281504 + ... + 656281717.

It is an arithmetic number, because the mean of its divisors is an integer number (35439206994).

Almost surely, 2^140444264647 is an apocalyptic number.

140444264647 is a deficient number, since it is larger than the sum of its proper divisors (1312563329).

140444264647 is a wasteful number, since it uses less digits than its factorization.

140444264647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1312563328.

The product of its (nonzero) digits is 2064384, while the sum is 46.

The spelling of 140444264647 in words is "one hundred forty billion, four hundred forty-four million, two hundred sixty-four thousand, six hundred forty-seven".