9699920644733 has 16 divisors (see below), whose sum is σ = 10618603505664. Its totient is φ = 8787396112560.

The previous prime is 9699920644727. The next prime is 9699920644769. The reversal of 9699920644733 is 3374460299969.

It is a cyclic number.

It is not a de Polignac number, because 9699920644733 - 2²⁴ = 9699903867517 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9699920644723) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14694566 + ... + 15340472.

It is an arithmetic number, because the mean of its divisors is an integer number (663662719104).

Almost surely, 2^{9699920644733} is an apocalyptic number.

It is an amenable number.

9699920644733 is a deficient number, since it is larger than the sum of its proper divisors (918682860931).

9699920644733 is a wasteful number, since it uses less digits than its factorization.

9699920644733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650672.

The product of its (nonzero) digits is 476171136, while the sum is 71.

The spelling of 9699920644733 in words is "nine trillion, six hundred ninety-nine billion, nine hundred twenty million, six hundred forty-four thousand, seven hundred thirty-three".