2621980199 has 2 divisors, whose sum is σ = 2621980200. Its totient is φ = 2621980198.

The previous prime is 2621980171. The next prime is 2621980223. The reversal of 2621980199 is 9910891262.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2621980199 - 2¹⁶ = 2621914663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2621988199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1310990099 + 1310990100.

It is an arithmetic number, because the mean of its divisors is an integer number (1310990100).

Almost surely, 2^2621980199 is an apocalyptic number.

2621980199 is a deficient number, since it is larger than the sum of its proper divisors (1).

2621980199 is an equidigital number, since it uses as much as digits as its factorization.

2621980199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 139968, while the sum is 47.

The square root of 2621980199 is about 51205.2751091135. The cubic root of 2621980199 is about 1378.9329073114.

The spelling of 2621980199 in words is "two billion, six hundred twenty-one million, nine hundred eighty thousand, one hundred ninety-nine".