29993297206393 has 4 divisors (see below), whose sum is σ = 30212226383220. Its totient is φ = 29774368029568.

The previous prime is 29993297206391. The next prime is 29993297206429. The reversal of 29993297206393 is 39360279239992.

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 25304803430544 + 4688493775849 = 5030388^2 + 2165293^2 .

It is a cyclic number.

It is not a de Polignac number, because 29993297206393 - 2¹ = 29993297206391 is a prime.

It is a super-2 number, since 2×29993297206393² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29993297206391) 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, 109464588208 + ... + 109464588481.

It is an arithmetic number, because the mean of its divisors is an integer number (7553056595805).

Almost surely, 2^{29993297206393} is an apocalyptic number.

It is an amenable number.

29993297206393 is a deficient number, since it is larger than the sum of its proper divisors (218929176827).

29993297206393 is a wasteful number, since it uses less digits than its factorization.

29993297206393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218929176826.

The product of its (nonzero) digits is 535692528, while the sum is 73.

The spelling of 29993297206393 in words is "twenty-nine trillion, nine hundred ninety-three billion, two hundred ninety-seven million, two hundred six thousand, three hundred ninety-three".