9640889974 has 4 divisors (see below), whose sum is σ = 14461334964. Its totient is φ = 4820444986.

The previous prime is 9640889969. The next prime is 9640890047. The reversal of 9640889974 is 4799880469.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2410222492 + ... + 2410222495.

It is an arithmetic number, because the mean of its divisors is an integer number (3615333741).

Almost surely, 2^9640889974 is an apocalyptic number.

9640889974 is a deficient number, since it is larger than the sum of its proper divisors (4820444990).

9640889974 is a wasteful number, since it uses less digits than its factorization.

9640889974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4820444989.

The product of its (nonzero) digits is 31352832, while the sum is 64.

The square root of 9640889974 is about 98188.0337617573. The cubic root of 9640889974 is about 2128.3303698911.

The spelling of 9640889974 in words is "nine billion, six hundred forty million, eight hundred eighty-nine thousand, nine hundred seventy-four".