71297488766 has 12 divisors (see below), whose sum is σ = 122225979192. Its totient is φ = 30555638436.

The previous prime is 71297488753. The next prime is 71297488789. The reversal of 71297488766 is 66788479217.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 963401 + ... + 1034763.

It is an arithmetic number, because the mean of its divisors is an integer number (10185498266).

Almost surely, 2^71297488766 is an apocalyptic number.

71297488766 is a deficient number, since it is larger than the sum of its proper divisors (50928490426).

71297488766 is an frugal number, since it uses more digits than its factorization.

71297488766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142735 (or 71372 counting only the distinct ones).

The product of its digits is 56899584, while the sum is 65.

The spelling of 71297488766 in words is "seventy-one billion, two hundred ninety-seven million, four hundred eighty-eight thousand, seven hundred sixty-six".