172312054304563 has 4 divisors (see below), whose sum is σ = 172314926280000. Its totient is φ = 172309182329128.

The previous prime is 172312054304557. The next prime is 172312054304591. The reversal of 172312054304563 is 365403450213271.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 172312054304563 - 2²¹ = 172312052207411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172312054304543) 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, 1435897720 + ... + 1436017717.

It is an arithmetic number, because the mean of its divisors is an integer number (43078731570000).

Almost surely, 2^{172312054304563} is an apocalyptic number.

172312054304563 is a deficient number, since it is larger than the sum of its proper divisors (2871975437).

172312054304563 is an equidigital number, since it uses as much as digits as its factorization.

172312054304563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2871975436.

The product of its (nonzero) digits is 1814400, while the sum is 46.

The spelling of 172312054304563 in words is "one hundred seventy-two trillion, three hundred twelve billion, fifty-four million, three hundred four thousand, five hundred sixty-three".