140804647643 has 4 divisors (see below), whose sum is σ = 153605070168. Its totient is φ = 128004225120.

The previous prime is 140804647639. The next prime is 140804647657. The reversal of 140804647643 is 346746408041.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 140804647643 - 2² = 140804647639 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140804647663) 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, 6400211246 + ... + 6400211267.

It is an arithmetic number, because the mean of its divisors is an integer number (38401267542).

Almost surely, 2^140804647643 is an apocalyptic number.

140804647643 is a deficient number, since it is larger than the sum of its proper divisors (12800422525).

140804647643 is a wasteful number, since it uses less digits than its factorization.

140804647643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12800422524.

The product of its (nonzero) digits is 1548288, while the sum is 47.

The spelling of 140804647643 in words is "one hundred forty billion, eight hundred four million, six hundred forty-seven thousand, six hundred forty-three".