71581625088 has 288 divisors, whose sum is σ = 205085475840. Its totient is φ = 22097940480.

The previous prime is 71581625081. The next prime is 71581625119. The reversal of 71581625088 is 88052618517.

It is a self number, because there is not a number n which added to its sum of digits gives 71581625088.

It is not an unprimeable number, because it can be changed into a prime (71581625081) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 206286931 + ... + 206287277.

Almost surely, 2^71581625088 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71581625088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102542737920).

71581625088 is an abundant number, since it is smaller than the sum of its proper divisors (133503850752).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71581625088 is a wasteful number, since it uses less digits than its factorization.

71581625088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663 (or 649 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 51.

The spelling of 71581625088 in words is "seventy-one billion, five hundred eighty-one million, six hundred twenty-five thousand, eighty-eight".