71672114657 has 12 divisors (see below), whose sum is σ = 84664856304. Its totient is φ = 60144430320.

The previous prime is 71672114627. The next prime is 71672114663. The reversal of 71672114657 is 75641127617.

It is not a de Polignac number, because 71672114657 - 2¹² = 71672110561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71672114627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19275203 + ... + 19278920.

It is an arithmetic number, because the mean of its divisors is an integer number (7055404692).

Almost surely, 2^71672114657 is an apocalyptic number.

It is an amenable number.

71672114657 is a deficient number, since it is larger than the sum of its proper divisors (12992741647).

71672114657 is a wasteful number, since it uses less digits than its factorization.

71672114657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38554160 (or 38554147 counting only the distinct ones).

The product of its digits is 493920, while the sum is 47.

The spelling of 71672114657 in words is "seventy-one billion, six hundred seventy-two million, one hundred fourteen thousand, six hundred fifty-seven".