9981474574 has 4 divisors (see below), whose sum is σ = 14972211864. Its totient is φ = 4990737286.

The previous prime is 9981474521. The next prime is 9981474583. The reversal of 9981474574 is 4754741899.

9981474574 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2495368642 + ... + 2495368645.

It is an arithmetic number, because the mean of its divisors is an integer number (3743052966).

Almost surely, 2^9981474574 is an apocalyptic number.

9981474574 is a deficient number, since it is larger than the sum of its proper divisors (4990737290).

9981474574 is a wasteful number, since it uses less digits than its factorization.

9981474574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4990737289.

The product of its digits is 10160640, while the sum is 58.

The square root of 9981474574 is about 99907.3299312918. The cubic root of 9981474574 is about 2153.1034736341.

The spelling of 9981474574 in words is "nine billion, nine hundred eighty-one million, four hundred seventy-four thousand, five hundred seventy-four".