71292988697 has 16 divisors (see below), whose sum is σ = 87516336000. Its totient is φ = 57892045680.

The previous prime is 71292988681. The next prime is 71292988727. The reversal of 71292988697 is 79688929217.

It is not a de Polignac number, because 71292988697 - 2⁴ = 71292988681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71292988607) 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, 5463254 + ... + 5476287.

It is an arithmetic number, because the mean of its divisors is an integer number (5469771000).

Almost surely, 2^71292988697 is an apocalyptic number.

It is an amenable number.

71292988697 is a deficient number, since it is larger than the sum of its proper divisors (16223347303).

71292988697 is a wasteful number, since it uses less digits than its factorization.

71292988697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10939581 (or 10939567 counting only the distinct ones).

The product of its digits is 54867456, while the sum is 68.

The spelling of 71292988697 in words is "seventy-one billion, two hundred ninety-two million, nine hundred eighty-eight thousand, six hundred ninety-seven".