71442393088 has 96 divisors (see below), whose sum is σ = 164039148000. Its totient is φ = 30764482560.

The previous prime is 71442393083. The next prime is 71442393097. The reversal of 71442393088 is 88039324417.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (71442393083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 344578 + ... + 511486.

It is an arithmetic number, because the mean of its divisors is an integer number (1708741125).

Almost surely, 2^71442393088 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 71442393088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82019574000).

71442393088 is an abundant number, since it is smaller than the sum of its proper divisors (92596754912).

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

71442393088 is a wasteful number, since it uses less digits than its factorization.

71442393088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166961 (or 166941 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 49.

The spelling of 71442393088 in words is "seventy-one billion, four hundred forty-two million, three hundred ninety-three thousand, eighty-eight".