172374554401 has 6 divisors (see below), whose sum is σ = 200517338850. Its totient is φ = 147749618016.

The previous prime is 172374554377. The next prime is 172374554413. The reversal of 172374554401 is 104455473271.

It can be written as a sum of positive squares in only one way, i.e., 167804929600 + 4569624801 = 409640^2 + 67599^2 .

It is not a de Polignac number, because 172374554401 - 2⁵ = 172374554369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172374554461) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1758923976 + ... + 1758924073.

It is an arithmetic number, because the mean of its divisors is an integer number (33419556475).

Almost surely, 2^172374554401 is an apocalyptic number.

It is an amenable number.

172374554401 is a deficient number, since it is larger than the sum of its proper divisors (28142784449).

172374554401 is an equidigital number, since it uses as much as digits as its factorization.

172374554401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3517848063 (or 3517848056 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 43.

The spelling of 172374554401 in words is "one hundred seventy-two billion, three hundred seventy-four million, five hundred fifty-four thousand, four hundred one".