71641213678 has 8 divisors (see below), whose sum is σ = 107592714360. Its totient is φ = 35776975560.

The previous prime is 71641213649. The next prime is 71641213729. The reversal of 71641213678 is 87631214617.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21813588 + ... + 21816871.

It is an arithmetic number, because the mean of its divisors is an integer number (13449089295).

Almost surely, 2^71641213678 is an apocalyptic number.

71641213678 is a deficient number, since it is larger than the sum of its proper divisors (35951500682).

71641213678 is a wasteful number, since it uses less digits than its factorization.

71641213678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43631282.

The product of its digits is 338688, while the sum is 46.

The spelling of 71641213678 in words is "seventy-one billion, six hundred forty-one million, two hundred thirteen thousand, six hundred seventy-eight".