2099864610 has 192 divisors, whose sum is σ = 5995866240. Its totient is φ = 508032000.

The previous prime is 2099864593. The next prime is 2099864659. The reversal of 2099864610 is 164689902.

It is a happy number.

2099864610 is a `hidden beast` number, since 20 + 9 + 9 + 8 + 6 + 4 + 610 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4276465 + ... + 4276955.

It is an arithmetic number, because the mean of its divisors is an integer number (31228470).

Almost surely, 2^2099864610 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2099864610, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2997933120).

2099864610 is an abundant number, since it is smaller than the sum of its proper divisors (3896001630).

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

2099864610 is a wasteful number, since it uses less digits than its factorization.

2099864610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625 (or 622 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 2099864610 is about 45824.2796997400. The cubic root of 2099864610 is about 1280.5516441400.

The spelling of 2099864610 in words is "two billion, ninety-nine million, eight hundred sixty-four thousand, six hundred ten".