71088567380 has 24 divisors (see below), whose sum is σ = 149467860360. Its totient is φ = 28400785280.

The previous prime is 71088567379. The next prime is 71088567391. The reversal of 71088567380 is 8376588017.

It can be written as a sum of positive squares in 4 ways, for example, as 3312693136 + 67775874244 = 57556^2 + 260338^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2148275 + ... + 2181114.

It is an arithmetic number, because the mean of its divisors is an integer number (6227827515).

Almost surely, 2^71088567380 is an apocalyptic number.

It is an amenable number.

71088567380 is an abundant number, since it is smaller than the sum of its proper divisors (78379292980).

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

71088567380 is a wasteful number, since it uses less digits than its factorization.

71088567380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4330219 (or 4330217 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 53.

The spelling of 71088567380 in words is "seventy-one billion, eighty-eight million, five hundred sixty-seven thousand, three hundred eighty".