71326071764621 has 8 divisors (see below), whose sum is σ = 72048374956800. Its totient is φ = 70607407380048.

The previous prime is 71326071764593. The next prime is 71326071764719. The reversal of 71326071764621 is 12646717062317.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71326071764621 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71326071764921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 909662501 + ... + 909740906.

It is an arithmetic number, because the mean of its divisors is an integer number (9006046869600).

Almost surely, 2^{71326071764621} is an apocalyptic number.

It is an amenable number.

71326071764621 is a deficient number, since it is larger than the sum of its proper divisors (722303192179).

71326071764621 is a wasteful number, since it uses less digits than its factorization.

71326071764621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1819403803.

The product of its (nonzero) digits is 3556224, while the sum is 53.

The spelling of 71326071764621 in words is "seventy-one trillion, three hundred twenty-six billion, seventy-one million, seven hundred sixty-four thousand, six hundred twenty-one".