29201820193 has 32 divisors (see below), whose sum is σ = 39367157760. Its totient is φ = 20995752960.

The previous prime is 29201820127. The next prime is 29201820199. The reversal of 29201820193 is 39102810292.

It is a de Polignac number, because none of the positive numbers 2^k-29201820193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (29201820199) 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, 280593 + ... + 370318.

It is an arithmetic number, because the mean of its divisors is an integer number (1230223680).

Almost surely, 2^29201820193 is an apocalyptic number.

It is an amenable number.

29201820193 is a deficient number, since it is larger than the sum of its proper divisors (10165337567).

29201820193 is a wasteful number, since it uses less digits than its factorization.

29201820193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650977.

The product of its (nonzero) digits is 15552, while the sum is 37.

Subtracting 29201820193 from its reverse (39102810292), we obtain a palindrome (9900990099).

The spelling of 29201820193 in words is "twenty-nine billion, two hundred one million, eight hundred twenty thousand, one hundred ninety-three".