29172373205 has 4 divisors (see below), whose sum is σ = 35006847852. Its totient is φ = 23337898560.

The previous prime is 29172373199. The next prime is 29172373231. The reversal of 29172373205 is 50237327192.

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 18290128081 + 10882245124 = 135241^2 + 104318^2 .

It is not a de Polignac number, because 29172373205 - 2⁶ = 29172373141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2917237316 + ... + 2917237325.

It is an arithmetic number, because the mean of its divisors is an integer number (8751711963).

Almost surely, 2^29172373205 is an apocalyptic number.

It is an amenable number.

29172373205 is a deficient number, since it is larger than the sum of its proper divisors (5834474647).

29172373205 is an equidigital number, since it uses as much as digits as its factorization.

29172373205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5834474646.

The product of its (nonzero) digits is 158760, while the sum is 41.

The spelling of 29172373205 in words is "twenty-nine billion, one hundred seventy-two million, three hundred seventy-three thousand, two hundred five".