9997333511 has 24 divisors (see below), whose sum is σ = 11454587760. Its totient is φ = 8710606080.

The previous prime is 9997333501. The next prime is 9997333517. The reversal of 9997333511 is 1153337999.

It is not a de Polignac number, because 9997333511 - 2¹⁸ = 9997071367 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9997333511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9997333517) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 283295 + ... + 316623.

It is an arithmetic number, because the mean of its divisors is an integer number (477274490).

Almost surely, 2^9997333511 is an apocalyptic number.

9997333511 is a deficient number, since it is larger than the sum of its proper divisors (1457254249).

9997333511 is a wasteful number, since it uses less digits than its factorization.

9997333511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33455 (or 33444 counting only the distinct ones).

The product of its digits is 688905, while the sum is 50.

The square root of 9997333511 is about 99986.6666661110. Note that the first 6 decimals coincide. The cubic root of 9997333511 is about 2154.2431804622.

The spelling of 9997333511 in words is "nine billion, nine hundred ninety-seven million, three hundred thirty-three thousand, five hundred eleven".