974893482989 has 4 divisors (see below), whose sum is σ = 998671372860. Its totient is φ = 951115593120.

The previous prime is 974893482977. The next prime is 974893482991. The reversal of 974893482989 is 989284398479.

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

It can be written as a sum of positive squares in 2 ways, for example, as 238103009764 + 736790473225 = 487958^2 + 858365^2 .

It is a cyclic number.

It is not a de Polignac number, because 974893482989 - 2²⁴ = 974876705773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (974893482929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11888944874 + ... + 11888944955.

It is an arithmetic number, because the mean of its divisors is an integer number (249667843215).

Almost surely, 2^974893482989 is an apocalyptic number.

It is an amenable number.

974893482989 is a deficient number, since it is larger than the sum of its proper divisors (23777889871).

974893482989 is a wasteful number, since it uses less digits than its factorization.

974893482989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23777889870.

The product of its digits is 2257403904, while the sum is 80.

The spelling of 974893482989 in words is "nine hundred seventy-four billion, eight hundred ninety-three million, four hundred eighty-two thousand, nine hundred eighty-nine".