71545433454 has 36 divisors (see below), whose sum is σ = 170388509928. Its totient is φ = 21680433720.

The previous prime is 71545433447. The next prime is 71545433503. The reversal of 71545433454 is 45433454517.

71545433454 is a `hidden beast` number, since 7 + 1 + 54 + 543 + 3 + 4 + 54 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 16422394 + ... + 16426749.

Almost surely, 2^71545433454 is an apocalyptic number.

71545433454 is an abundant number, since it is smaller than the sum of its proper divisors (98843076474).

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

71545433454 is a wasteful number, since it uses less digits than its factorization.

71545433454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32849173 (or 32849159 counting only the distinct ones).

The product of its digits is 2016000, while the sum is 45.

The spelling of 71545433454 in words is "seventy-one billion, five hundred forty-five million, four hundred thirty-three thousand, four hundred fifty-four".