172045240454 has 16 divisors (see below), whose sum is σ = 273698517888. Its totient is φ = 80829075072.

The previous prime is 172045240441. The next prime is 172045240513. The reversal of 172045240454 is 454042540271.

It is a super-2 number, since 2×172045240454² (a number of 23 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 (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4147529 + ... + 4188804.

It is an arithmetic number, because the mean of its divisors is an integer number (17106157368).

Almost surely, 2^172045240454 is an apocalyptic number.

172045240454 is a deficient number, since it is larger than the sum of its proper divisors (101653277434).

172045240454 is a wasteful number, since it uses less digits than its factorization.

172045240454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8336959.

The product of its (nonzero) digits is 179200, while the sum is 38.

The spelling of 172045240454 in words is "one hundred seventy-two billion, forty-five million, two hundred forty thousand, four hundred fifty-four".