971712632641 has 12 divisors (see below), whose sum is σ = 1026645178800. Its totient is φ = 917171608680.

The previous prime is 971712632623. The next prime is 971712632699. The reversal of 971712632641 is 146236217179.

It is not a de Polignac number, because 971712632641 - 2¹¹ = 971712630593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (971712633641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1047190 + ... + 1743568.

It is an arithmetic number, because the mean of its divisors is an integer number (85553764900).

Almost surely, 2^971712632641 is an apocalyptic number.

It is an amenable number.

971712632641 is a deficient number, since it is larger than the sum of its proper divisors (54932546159).

971712632641 is an equidigital number, since it uses as much as digits as its factorization.

971712632641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696940 (or 696669 counting only the distinct ones).

The product of its digits is 762048, while the sum is 49.

The spelling of 971712632641 in words is "nine hundred seventy-one billion, seven hundred twelve million, six hundred thirty-two thousand, six hundred forty-one".