140744727447 has 8 divisors (see below), whose sum is σ = 188444824320. Its totient is φ = 93437224440.

The previous prime is 140744727437. The next prime is 140744727451. The reversal of 140744727447 is 744727447041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-140744727447 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 140744727447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140744727437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98147629 + ... + 98149062.

It is an arithmetic number, because the mean of its divisors is an integer number (23555603040).

Almost surely, 2^140744727447 is an apocalyptic number.

140744727447 is a deficient number, since it is larger than the sum of its proper divisors (47700096873).

140744727447 is a wasteful number, since it uses less digits than its factorization.

140744727447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196296933.

The product of its (nonzero) digits is 4917248, while the sum is 51.

The spelling of 140744727447 in words is "one hundred forty billion, seven hundred forty-four million, seven hundred twenty-seven thousand, four hundred forty-seven".