71771007080 has 64 divisors (see below), whose sum is σ = 163110205440. Its totient is φ = 28420422912.

The previous prime is 71771007071. The next prime is 71771007089. The reversal of 71771007080 is 8070017717.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (71771007071) and next prime (71771007089).

It is not an unprimeable number, because it can be changed into a prime (71771007089) 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, 2357234 + ... + 2387486.

It is an arithmetic number, because the mean of its divisors is an integer number (2548596960).

Almost surely, 2^71771007080 is an apocalyptic number.

It is an amenable number.

71771007080 is an abundant number, since it is smaller than the sum of its proper divisors (91339198360).

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

71771007080 is a wasteful number, since it uses less digits than its factorization.

71771007080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30858 (or 30854 counting only the distinct ones).

The product of its (nonzero) digits is 19208, while the sum is 38.

The spelling of 71771007080 in words is "seventy-one billion, seven hundred seventy-one million, seven thousand, eighty".