972843816601 has 4 divisors (see below), whose sum is σ = 972899683600. Its totient is φ = 972787949604.

The previous prime is 972843816533. The next prime is 972843816611. The reversal of 972843816601 is 106618348279.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 972843816601 - 2³¹ = 970696332953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (972843816611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27907371 + ... + 27942208.

It is an arithmetic number, because the mean of its divisors is an integer number (243224920900).

Almost surely, 2^972843816601 is an apocalyptic number.

It is an amenable number.

972843816601 is a deficient number, since it is larger than the sum of its proper divisors (55866999).

972843816601 is a wasteful number, since it uses less digits than its factorization.

972843816601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55866998.

The product of its (nonzero) digits is 3483648, while the sum is 55.

The spelling of 972843816601 in words is "nine hundred seventy-two billion, eight hundred forty-three million, eight hundred sixteen thousand, six hundred one".