974985827971 has 6 divisors (see below), whose sum is σ = 1007451538116. Its totient is φ = 943534671300.

The previous prime is 974985827957. The next prime is 974985827983. The reversal of 974985827971 is 179728589479.

It is not a de Polignac number, because 974985827971 - 2¹¹ = 974985825923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (974985827911) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 507275745 + ... + 507277666.

It is an arithmetic number, because the mean of its divisors is an integer number (167908589686).

Almost surely, 2^974985827971 is an apocalyptic number.

974985827971 is a deficient number, since it is larger than the sum of its proper divisors (32465710145).

974985827971 is a wasteful number, since it uses less digits than its factorization.

974985827971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1014553473 (or 1014553442 counting only the distinct ones).

The product of its digits is 640120320, while the sum is 76.

The spelling of 974985827971 in words is "nine hundred seventy-four billion, nine hundred eighty-five million, eight hundred twenty-seven thousand, nine hundred seventy-one".