71458440071 has 16 divisors (see below), whose sum is σ = 72519321600. Its totient is φ = 70405826400.

The previous prime is 71458440049. The next prime is 71458440107. The reversal of 71458440071 is 17004485417.

It is a cyclic number.

It is not a de Polignac number, because 71458440071 - 2²² = 71454245767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71458440371) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23730956 + ... + 23733966.

It is an arithmetic number, because the mean of its divisors is an integer number (4532457600).

Almost surely, 2^71458440071 is an apocalyptic number.

71458440071 is a deficient number, since it is larger than the sum of its proper divisors (1060881529).

71458440071 is a wasteful number, since it uses less digits than its factorization.

71458440071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4270.

The product of its (nonzero) digits is 125440, while the sum is 41.

The spelling of 71458440071 in words is "seventy-one billion, four hundred fifty-eight million, four hundred forty thousand, seventy-one".