2147721744073 has 16 divisors (see below), whose sum is σ = 2253837913600. Its totient is φ = 2044011024000.

The previous prime is 2147721744067. The next prime is 2147721744079. The reversal of 2147721744073 is 3704471277412.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2147721744067) and next prime (2147721744079).

It is a cyclic number.

It is not a de Polignac number, because 2147721744073 - 2¹⁷ = 2147721613001 is a prime.

It is a super-2 number, since 2×2147721744073² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2147721744079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 388003 + ... + 2108551.

It is an arithmetic number, because the mean of its divisors is an integer number (140864869600).

Almost surely, 2^{2147721744073} is an apocalyptic number.

It is an amenable number.

2147721744073 is a deficient number, since it is larger than the sum of its proper divisors (106116169527).

2147721744073 is a wasteful number, since it uses less digits than its factorization.

2147721744073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1721248.

The product of its (nonzero) digits is 1843968, while the sum is 49.

The spelling of 2147721744073 in words is "two trillion, one hundred forty-seven billion, seven hundred twenty-one million, seven hundred forty-four thousand, seventy-three".