71141871549 has 16 divisors (see below), whose sum is σ = 108596533760. Its totient is φ = 40581295920.

The previous prime is 71141871499. The next prime is 71141871553. The reversal of 71141871549 is 94517814117.

It is not a de Polignac number, because 71141871549 - 2⁹ = 71141871037 is a prime.

It is a super-2 number, since 2×71141871549² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71141871498 and 71141871507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71141871569) 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, 2954479 + ... + 2978460.

It is an arithmetic number, because the mean of its divisors is an integer number (6787283360).

Almost surely, 2^71141871549 is an apocalyptic number.

It is an amenable number.

71141871549 is a deficient number, since it is larger than the sum of its proper divisors (37454662211).

71141871549 is a wasteful number, since it uses less digits than its factorization.

71141871549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5933520.

The product of its digits is 282240, while the sum is 48.

The spelling of 71141871549 in words is "seventy-one billion, one hundred forty-one million, eight hundred seventy-one thousand, five hundred forty-nine".