172452422898 has 270 divisors, whose sum is σ = 463119638751. Its totient is φ = 47823873552.

The previous prime is 172452422837. The next prime is 172452422899. The reversal of 172452422898 is 898224254271.

172452422898 is a `hidden beast` number, since 1 + 7 + 2 + 4 + 524 + 2 + 28 + 98 = 666.

172452422898 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 86226211449 + 86226211449 = 293643^2 + 293643^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=293643.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (172452422899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 2182942023 + ... + 2182942101.

Almost surely, 2^172452422898 is an apocalyptic number.

172452422898 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 172452422898

172452422898 is an abundant number, since it is smaller than the sum of its proper divisors (290667215853).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

172452422898 is an frugal number, since it uses more digits than its factorization.

172452422898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304 (or 150 counting only the distinct ones).

The product of its digits is 5160960, while the sum is 54.

The spelling of 172452422898 in words is "one hundred seventy-two billion, four hundred fifty-two million, four hundred twenty-two thousand, eight hundred ninety-eight".