71169270691 has 16 divisors (see below), whose sum is σ = 78191389440. Its totient is φ = 64476228960.

The previous prime is 71169270677. The next prime is 71169270709. The reversal of 71169270691 is 19607296117.

It is a cyclic number.

It is not a de Polignac number, because 71169270691 - 2⁵ = 71169270659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71169270091) 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, 1993821 + ... + 2029201.

It is an arithmetic number, because the mean of its divisors is an integer number (4886961840).

Almost surely, 2^71169270691 is an apocalyptic number.

71169270691 is a deficient number, since it is larger than the sum of its proper divisors (7022118749).

71169270691 is a wasteful number, since it uses less digits than its factorization.

71169270691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40026.

The product of its (nonzero) digits is 285768, while the sum is 49.

The spelling of 71169270691 in words is "seventy-one billion, one hundred sixty-nine million, two hundred seventy thousand, six hundred ninety-one".