172883864247 has 8 divisors (see below), whose sum is σ = 230877133440. Its totient is φ = 115073252280.

The previous prime is 172883864201. The next prime is 172883864267. The reversal of 172883864247 is 742468388271.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 172883864247 - 2¹⁸ = 172883602103 is a prime.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172883864267) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45662097 + ... + 45665882.

It is an arithmetic number, because the mean of its divisors is an integer number (28859641680).

Almost surely, 2^172883864247 is an apocalyptic number.

172883864247 is a deficient number, since it is larger than the sum of its proper divisors (57993269193).

172883864247 is an equidigital number, since it uses as much as digits as its factorization.

172883864247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91328613.

The product of its digits is 28901376, while the sum is 60.

The spelling of 172883864247 in words is "one hundred seventy-two billion, eight hundred eighty-three million, eight hundred sixty-four thousand, two hundred forty-seven".