1972000043723 has 8 divisors (see below), whose sum is σ = 2025317881392. Its totient is φ = 1918683287136.

The previous prime is 1972000043701. The next prime is 1972000043749. The reversal of 1972000043723 is 3273400002791.

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

It is a cyclic number.

It is not a de Polignac number, because 1972000043723 - 2³² = 1967705076427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1972000045723) 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, 4595636 + ... + 5006382.

It is an arithmetic number, because the mean of its divisors is an integer number (253164735174).

Almost surely, 2^{1972000043723} is an apocalyptic number.

1972000043723 is a deficient number, since it is larger than the sum of its proper divisors (53317837669).

1972000043723 is a wasteful number, since it uses less digits than its factorization.

1972000043723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540541.

The product of its (nonzero) digits is 63504, while the sum is 38.

The spelling of 1972000043723 in words is "one trillion, nine hundred seventy-two billion, forty-three thousand, seven hundred twenty-three".