1973023165729 has 32 divisors (see below), whose sum is σ = 2485707033600. Its totient is φ = 1521292536000.

The previous prime is 1973023165691. The next prime is 1973023165741. The reversal of 1973023165729 is 9275613203791.

It is a cyclic number.

It is not a de Polignac number, because 1973023165729 - 2⁷ = 1973023165601 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1973023165729.

It is not an unprimeable number, because it can be changed into a prime (1973023165129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13138462 + ... + 13287784.

It is an arithmetic number, because the mean of its divisors is an integer number (77678344800).

Almost surely, 2^{1973023165729} is an apocalyptic number.

It is an amenable number.

1973023165729 is a deficient number, since it is larger than the sum of its proper divisors (512683867871).

1973023165729 is a wasteful number, since it uses less digits than its factorization.

1973023165729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151141.

The product of its (nonzero) digits is 4286520, while the sum is 55.

The spelling of 1973023165729 in words is "one trillion, nine hundred seventy-three billion, twenty-three million, one hundred sixty-five thousand, seven hundred twenty-nine".