6140263189721 has 4 divisors (see below), whose sum is σ = 6169363963344. Its totient is φ = 6111162416100.

The previous prime is 6140263189703. The next prime is 6140263189769. The reversal of 6140263189721 is 1279813620416.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6140263189721 - 2¹⁴ = 6140263173337 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 6140263189721.

It is not an unprimeable number, because it can be changed into a prime (6140263089721) 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, 14550386495 + ... + 14550386916.

It is an arithmetic number, because the mean of its divisors is an integer number (1542340990836).

Almost surely, 2^{6140263189721} is an apocalyptic number.

It is an amenable number.

6140263189721 is a deficient number, since it is larger than the sum of its proper divisors (29100773623).

6140263189721 is a wasteful number, since it uses less digits than its factorization.

6140263189721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29100773622.

The product of its (nonzero) digits is 870912, while the sum is 50.

The spelling of 6140263189721 in words is "six trillion, one hundred forty billion, two hundred sixty-three million, one hundred eighty-nine thousand, seven hundred twenty-one".