140738452687747 has 4 divisors (see below), whose sum is σ = 141516013200016. Its totient is φ = 139960892175480.

The previous prime is 140738452687741. The next prime is 140738452687829. The reversal of 140738452687747 is 747786254837041.

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 140738452687747 - 2²⁷ = 140738318470019 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 140738452687747.

It is not an unprimeable number, because it can be changed into a prime (140738452687741) 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 3 ways as a sum of consecutive naturals, for example, 388780255863 + ... + 388780256224.

It is an arithmetic number, because the mean of its divisors is an integer number (35379003300004).

Almost surely, 2^{140738452687747} is an apocalyptic number.

140738452687747 is a deficient number, since it is larger than the sum of its proper divisors (777560512269).

140738452687747 is an equidigital number, since it uses as much as digits as its factorization.

140738452687747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777560512268.

The product of its (nonzero) digits is 1770209280, while the sum is 73.

The spelling of 140738452687747 in words is "one hundred forty trillion, seven hundred thirty-eight billion, four hundred fifty-two million, six hundred eighty-seven thousand, seven hundred forty-seven".