71255840045 has 16 divisors (see below), whose sum is σ = 92497423872. Its totient is φ = 52383723840.

The previous prime is 71255840021. The next prime is 71255840083. The reversal of 71255840045 is 54004855217.

It is not a de Polignac number, because 71255840045 - 2¹⁶ = 71255774509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71255839984 and 71255840011.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2443451 + ... + 2472440.

It is an arithmetic number, because the mean of its divisors is an integer number (5781088992).

Almost surely, 2^71255840045 is an apocalyptic number.

It is an amenable number.

71255840045 is a deficient number, since it is larger than the sum of its proper divisors (21241583827).

71255840045 is a wasteful number, since it uses less digits than its factorization.

71255840045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4916132.

The product of its (nonzero) digits is 224000, while the sum is 41.

The spelling of 71255840045 in words is "seventy-one billion, two hundred fifty-five million, eight hundred forty thousand, forty-five".