71250748881 has 16 divisors (see below), whose sum is σ = 106756976256. Its totient is φ = 41940239616.

The previous prime is 71250748853. The next prime is 71250748903. The reversal of 71250748881 is 18884705217.

It is not a de Polignac number, because 71250748881 - 2⁷ = 71250748753 is a prime.

It is a super-2 number, since 2×71250748881² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (71250748801) 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, 39715240 + ... + 39717033.

It is an arithmetic number, because the mean of its divisors is an integer number (6672311016).

Almost surely, 2^71250748881 is an apocalyptic number.

It is an amenable number.

71250748881 is a deficient number, since it is larger than the sum of its proper divisors (35506227375).

71250748881 is a wasteful number, since it uses less digits than its factorization.

71250748881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79432312.

The product of its (nonzero) digits is 1003520, while the sum is 51.

The spelling of 71250748881 in words is "seventy-one billion, two hundred fifty million, seven hundred forty-eight thousand, eight hundred eighty-one".