971998682693 has 8 divisors (see below), whose sum is σ = 1014284846016. Its totient is φ = 929714632000.

The previous prime is 971998682639. The next prime is 971998682713. The reversal of 971998682693 is 396286899179.

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

It is a cyclic number.

It is not a de Polignac number, because 971998682693 - 2¹² = 971998678597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (971998682623) 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, 450653 + ... + 1465293.

It is an arithmetic number, because the mean of its divisors is an integer number (126785605752).

Almost surely, 2^971998682693 is an apocalyptic number.

It is an amenable number.

971998682693 is a deficient number, since it is larger than the sum of its proper divisors (42286163323).

971998682693 is a wasteful number, since it uses less digits than its factorization.

971998682693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1056315.

The product of its digits is 634894848, while the sum is 77.

The spelling of 971998682693 in words is "nine hundred seventy-one billion, nine hundred ninety-eight million, six hundred eighty-two thousand, six hundred ninety-three".