451172544171 has 16 divisors (see below), whose sum is σ = 603075102240. Its totient is φ = 300026039040.

The previous prime is 451172544161. The next prime is 451172544241. The reversal of 451172544171 is 171445271154.

It is not a de Polignac number, because 451172544171 - 2¹⁴ = 451172527787 is a prime.

It is a super-2 number, since 2×451172544171² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (451172544101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11211775 + ... + 11251943.

It is an arithmetic number, because the mean of its divisors is an integer number (37692193890).

Almost surely, 2^451172544171 is an apocalyptic number.

451172544171 is a deficient number, since it is larger than the sum of its proper divisors (151902558069).

451172544171 is a wasteful number, since it uses less digits than its factorization.

451172544171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49486.

The product of its digits is 156800, while the sum is 42.

The spelling of 451172544171 in words is "four hundred fifty-one billion, one hundred seventy-two million, five hundred forty-four thousand, one hundred seventy-one".