2099605951 has 2 divisors, whose sum is σ = 2099605952. Its totient is φ = 2099605950.

The previous prime is 2099605943. The next prime is 2099605979. The reversal of 2099605951 is 1595069902.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2099605951 - 2³ = 2099605943 is a prime.

It is a super-2 number, since 2×2099605951² = 8816690298949228802, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2099605351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1049802975 + 1049802976.

It is an arithmetic number, because the mean of its divisors is an integer number (1049802976).

Almost surely, 2^2099605951 is an apocalyptic number.

2099605951 is a deficient number, since it is larger than the sum of its proper divisors (1).

2099605951 is an equidigital number, since it uses as much as digits as its factorization.

2099605951 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 218700, while the sum is 46.

The square root of 2099605951 is about 45821.4573207793. The cubic root of 2099605951 is about 1280.4990630026.

The spelling of 2099605951 in words is "two billion, ninety-nine million, six hundred five thousand, nine hundred fifty-one".