2621608499 has 2 divisors, whose sum is σ = 2621608500. Its totient is φ = 2621608498.

The previous prime is 2621608489. The next prime is 2621608501. The reversal of 2621608499 is 9948061262.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2621608499 - 2⁸ = 2621608243 is a prime.

It is a super-2 number, since 2×2621608499² = 13745662244058066002, which contains 22 as substring.

Together with 2621608501, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2621608469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1310804249 + 1310804250.

It is an arithmetic number, because the mean of its divisors is an integer number (1310804250).

Almost surely, 2^2621608499 is an apocalyptic number.

2621608499 is a deficient number, since it is larger than the sum of its proper divisors (1).

2621608499 is an equidigital number, since it uses as much as digits as its factorization.

2621608499 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 2621608499 is about 51201.6454716057. The cubic root of 2621608499 is about 1378.8677436381.

The spelling of 2621608499 in words is "two billion, six hundred twenty-one million, six hundred eight thousand, four hundred ninety-nine".