32172770213 has 4 divisors (see below), whose sum is σ = 32256772608. Its totient is φ = 32088767820.

The previous prime is 32172770209. The next prime is 32172770221. The reversal of 32172770213 is 31207727123.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 32172770213 - 2² = 32172770209 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32172770293) 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, 42000623 + ... + 42001388.

It is an arithmetic number, because the mean of its divisors is an integer number (8064193152).

Almost surely, 2^32172770213 is an apocalyptic number.

It is an amenable number.

32172770213 is a deficient number, since it is larger than the sum of its proper divisors (84002395).

32172770213 is an equidigital number, since it uses as much as digits as its factorization.

32172770213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84002394.

The product of its (nonzero) digits is 24696, while the sum is 35.

The spelling of 32172770213 in words is "thirty-two billion, one hundred seventy-two million, seven hundred seventy thousand, two hundred thirteen".