2199800957 has 2 divisors, whose sum is σ = 2199800958. Its totient is φ = 2199800956.

The previous prime is 2199800857. The next prime is 2199801001. The reversal of 2199800957 is 7590089912.

It is a happy number.

2199800957 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1850634361 + 349166596 = 43019^2 + 18686^2 .

It is a cyclic number.

It is not a de Polignac number, because 2199800957 - 2¹² = 2199796861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2199800857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1099900478 + 1099900479.

It is an arithmetic number, because the mean of its divisors is an integer number (1099900479).

Almost surely, 2^2199800957 is an apocalyptic number.

It is an amenable number.

2199800957 is a deficient number, since it is larger than the sum of its proper divisors (1).

2199800957 is an equidigital number, since it uses as much as digits as its factorization.

2199800957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 408240, while the sum is 50.

The square root of 2199800957 is about 46902.0357447307. The cubic root of 2199800957 is about 1300.5522223922.

The spelling of 2199800957 in words is "two billion, one hundred ninety-nine million, eight hundred thousand, nine hundred fifty-seven".