71271453641 has 16 divisors (see below), whose sum is σ = 75561657600. Its totient is φ = 67036854528.

The previous prime is 71271453593. The next prime is 71271453647. The reversal of 71271453641 is 14635417217.

It is a cyclic number.

It is not a de Polignac number, because 71271453641 - 2⁶ = 71271453577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71271453647) 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, 1507031 + ... + 1553603.

It is an arithmetic number, because the mean of its divisors is an integer number (4722603600).

Almost surely, 2^71271453641 is an apocalyptic number.

It is an amenable number.

71271453641 is a deficient number, since it is larger than the sum of its proper divisors (4290203959).

71271453641 is a wasteful number, since it uses less digits than its factorization.

71271453641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47168.

The product of its digits is 141120, while the sum is 41.

The spelling of 71271453641 in words is "seventy-one billion, two hundred seventy-one million, four hundred fifty-three thousand, six hundred forty-one".