9649132899 has 32 divisors (see below), whose sum is σ = 14873794560. Its totient is φ = 5450253312.

The previous prime is 9649132751. The next prime is 9649132907. The reversal of 9649132899 is 9982319469.

It is a Cunningham number, because it is equal to 98230²-1.

It is not a de Polignac number, because 9649132899 - 2¹⁷ = 9649001827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9649136899) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 680587 + ... + 694619.

It is an arithmetic number, because the mean of its divisors is an integer number (464806080).

Almost surely, 2^9649132899 is an apocalyptic number.

9649132899 is a deficient number, since it is larger than the sum of its proper divisors (5224661661).

9649132899 is a wasteful number, since it uses less digits than its factorization.

9649132899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14419.

The product of its digits is 7558272, while the sum is 60.

The square root of 9649132899 is about 98229.9999949099. Note that the first 5 decimals coincide. The cubic root of 9649132899 is about 2128.9367686127.

The spelling of 9649132899 in words is "nine billion, six hundred forty-nine million, one hundred thirty-two thousand, eight hundred ninety-nine".