172366274451 has 8 divisors (see below), whose sum is σ = 262653370624. Its totient is φ = 98495013960.

The previous prime is 172366274449. The next prime is 172366274467. The reversal of 172366274451 is 154472663271.

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

It is not a de Polignac number, because 172366274451 - 2¹ = 172366274449 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 172366274451.

It is not an unprimeable number, because it can be changed into a prime (172366274441) 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, 4103958895 + ... + 4103958936.

It is an arithmetic number, because the mean of its divisors is an integer number (32831671328).

Almost surely, 2^172366274451 is an apocalyptic number.

172366274451 is a deficient number, since it is larger than the sum of its proper divisors (90287096173).

172366274451 is an equidigital number, since it uses as much as digits as its factorization.

172366274451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8207917841.

The product of its digits is 1693440, while the sum is 48.

The spelling of 172366274451 in words is "one hundred seventy-two billion, three hundred sixty-six million, two hundred seventy-four thousand, four hundred fifty-one".