71212106657127 has 32 divisors (see below), whose sum is σ = 100158487441920. Its totient is φ = 44880894858240.

The previous prime is 71212106657023. The next prime is 71212106657143. The reversal of 71212106657127 is 72175660121217.

It is not a de Polignac number, because 71212106657127 - 2³² = 71207811689831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71212106650127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64098127 + ... + 65199647.

It is an arithmetic number, because the mean of its divisors is an integer number (3129952732560).

Almost surely, 2^{71212106657127} is an apocalyptic number.

71212106657127 is a deficient number, since it is larger than the sum of its proper divisors (28946380784793).

71212106657127 is a wasteful number, since it uses less digits than its factorization.

71212106657127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1103943.

The product of its (nonzero) digits is 493920, while the sum is 48.

The spelling of 71212106657127 in words is "seventy-one trillion, two hundred twelve billion, one hundred six million, six hundred fifty-seven thousand, one hundred twenty-seven".