4099211961 has 32 divisors (see below), whose sum is σ = 6219816960. Its totient is φ = 2382329664.

The previous prime is 4099211959. The next prime is 4099211969. The reversal of 4099211961 is 1691129904.

It is a happy number.

It is not a de Polignac number, because 4099211961 - 2¹ = 4099211959 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4099211969) 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, 41940 + ... + 99786.

It is an arithmetic number, because the mean of its divisors is an integer number (194369280).

Almost surely, 2^4099211961 is an apocalyptic number.

It is an amenable number.

4099211961 is a deficient number, since it is larger than the sum of its proper divisors (2120604999).

4099211961 is a wasteful number, since it uses less digits than its factorization.

4099211961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57965.

The product of its (nonzero) digits is 34992, while the sum is 42.

The square root of 4099211961 is about 64025.0885278576. The cubic root of 4099211961 is about 1600.4181148165.

The spelling of 4099211961 in words is "four billion, ninety-nine million, two hundred eleven thousand, nine hundred sixty-one".