29993244543973 has 4 divisors (see below), whose sum is σ = 30724787093868. Its totient is φ = 29261701994080.

The previous prime is 29993244543947. The next prime is 29993244543991. The reversal of 29993244543973 is 37934544239992.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14960820598084 + 15032423945889 = 3867922^2 + 3877167^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29993244543973 is a prime.

It is a super-2 number, since 2×29993244543973² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 29993244543896 and 29993244543905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29993244549973) 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, 365771274886 + ... + 365771274967.

It is an arithmetic number, because the mean of its divisors is an integer number (7681196773467).

Almost surely, 2^{29993244543973} is an apocalyptic number.

It is an amenable number.

29993244543973 is a deficient number, since it is larger than the sum of its proper divisors (731542549895).

29993244543973 is an equidigital number, since it uses as much as digits as its factorization.

29993244543973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731542549894.

The product of its digits is 1587237120, while the sum is 73.

The spelling of 29993244543973 in words is "twenty-nine trillion, nine hundred ninety-three billion, two hundred forty-four million, five hundred forty-three thousand, nine hundred seventy-three".