971425100881 has 9 divisors (see below), whose sum is σ = 1031946885649. Its totient is φ = 914266678144.

The previous prime is 971425100857. The next prime is 971425100939. The reversal of 971425100881 is 188001524179.

The square root of 971425100881 is 985609.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 5529260881 + 965895840000 = 74359^2 + 982800^2 .

It is not a de Polignac number, because 971425100881 - 2³⁷ = 833986147409 is a prime.

It is a super-2 number, since 2×971425100881² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (971425100381) 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 8 ways as a sum of consecutive naturals, for example, 16726365 + ... + 16784341.

Almost surely, 2^971425100881 is an apocalyptic number.

971425100881 is the 985609-th square number.

971425100881 is the 492805-th centered octagonal number.

It is an amenable number.

971425100881 is a deficient number, since it is larger than the sum of its proper divisors (60521784768).

971425100881 is an frugal number, since it uses more digits than its factorization.

971425100881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115988 (or 57994 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 46.

The spelling of 971425100881 in words is "nine hundred seventy-one billion, four hundred twenty-five million, one hundred thousand, eight hundred eighty-one".