9969351574 has 24 divisors (see below), whose sum is σ = 18506087280. Its totient is φ = 3943918368.

The previous prime is 9969351529. The next prime is 9969351629. The reversal of 9969351574 is 4751539699.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2104429 + ... + 2109160.

It is an arithmetic number, because the mean of its divisors is an integer number (771086970).

Almost surely, 2^9969351574 is an apocalyptic number.

9969351574 is a deficient number, since it is larger than the sum of its proper divisors (8536735706).

9969351574 is a wasteful number, since it uses less digits than its factorization.

9969351574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4213624 (or 4213611 counting only the distinct ones).

The product of its digits is 9185400, while the sum is 58.

The square root of 9969351574 is about 99846.6402739722. The cubic root of 9969351574 is about 2152.2314365492.

The spelling of 9969351574 in words is "nine billion, nine hundred sixty-nine million, three hundred fifty-one thousand, five hundred seventy-four".