71110021267 has 16 divisors (see below), whose sum is σ = 73261393920. Its totient is φ = 68996740032.

The previous prime is 71110021249. The next prime is 71110021273. The reversal of 71110021267 is 76212001117.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71110021267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71110021247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1545598 + ... + 1590940.

It is an arithmetic number, because the mean of its divisors is an integer number (4578837120).

Almost surely, 2^71110021267 is an apocalyptic number.

71110021267 is a deficient number, since it is larger than the sum of its proper divisors (2151372653).

71110021267 is a wasteful number, since it uses less digits than its factorization.

71110021267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45762.

The product of its (nonzero) digits is 1176, while the sum is 28.

The spelling of 71110021267 in words is "seventy-one billion, one hundred ten million, twenty-one thousand, two hundred sixty-seven".