2309661696 has 176 divisors, whose sum is σ = 6456074240. Its totient is φ = 733224960.

The previous prime is 2309661691. The next prime is 2309661749. The reversal of 2309661696 is 6961669032.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (2309661691) 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, 7523175 + ... + 7523481.

It is an arithmetic number, because the mean of its divisors is an integer number (36682240).

Almost surely, 2^2309661696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2309661696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3228037120).

2309661696 is an abundant number, since it is smaller than the sum of its proper divisors (4146412544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2309661696 is a wasteful number, since it uses less digits than its factorization.

2309661696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440 (or 422 counting only the distinct ones).

The product of its (nonzero) digits is 629856, while the sum is 48.

The square root of 2309661696 is about 48058.9398135248. The cubic root of 2309661696 is about 1321.8518727227.

The spelling of 2309661696 in words is "two billion, three hundred nine million, six hundred sixty-one thousand, six hundred ninety-six".