8972981945976 has 32 divisors (see below), whose sum is σ = 22442263683840. Its totient is φ = 2989686139488.

The previous prime is 8972981945869. The next prime is 8972981946013. The reversal of 8972981945976 is 6795491892798.

It is a happy number.

It is a super-2 number, since 2×8972981945976² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81684126 + ... + 81793901.

It is an arithmetic number, because the mean of its divisors is an integer number (701320740120).

Almost surely, 2^{8972981945976} is an apocalyptic number.

It is an amenable number.

8972981945976 is an abundant number, since it is smaller than the sum of its proper divisors (13469281737864).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8972981945976 is a wasteful number, since it uses less digits than its factorization.

8972981945976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163480323 (or 163480319 counting only the distinct ones).

The product of its digits is 4938071040, while the sum is 84.

The spelling of 8972981945976 in words is "eight trillion, nine hundred seventy-two billion, nine hundred eighty-one million, nine hundred forty-five thousand, nine hundred seventy-six".