172407848161245 has 16 divisors (see below), whose sum is σ = 287846146495872. Its totient is φ = 87952989206720.

The previous prime is 172407848161181. The next prime is 172407848161279. The reversal of 172407848161245 is 542161848704271.

It is not a de Polignac number, because 172407848161245 - 2⁶ = 172407848161181 is a prime.

It is a super-2 number, since 2×172407848161245² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 249866446266 + ... + 249866446955.

It is an arithmetic number, because the mean of its divisors is an integer number (17990384155992).

Almost surely, 2^{172407848161245} is an apocalyptic number.

172407848161245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

172407848161245 is a deficient number, since it is larger than the sum of its proper divisors (115438298334627).

172407848161245 is a wasteful number, since it uses less digits than its factorization.

172407848161245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499732893252.

The product of its (nonzero) digits is 24084480, while the sum is 60.

The spelling of 172407848161245 in words is "one hundred seventy-two trillion, four hundred seven billion, eight hundred forty-eight million, one hundred sixty-one thousand, two hundred forty-five".