621050774299 has 2 divisors, whose sum is σ = 621050774300. Its totient is φ = 621050774298.

The previous prime is 621050774297. The next prime is 621050774327. The reversal of 621050774299 is 992477050126.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 621050774299 - 2¹ = 621050774297 is a prime.

Together with 621050774297, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (621050774291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310525387149 + 310525387150.

It is an arithmetic number, because the mean of its divisors is an integer number (310525387150).

Almost surely, 2^621050774299 is an apocalyptic number.

621050774299 is a deficient number, since it is larger than the sum of its proper divisors (1).

621050774299 is an equidigital number, since it uses as much as digits as its factorization.

621050774299 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1905120, while the sum is 52.

The spelling of 621050774299 in words is "six hundred twenty-one billion, fifty million, seven hundred seventy-four thousand, two hundred ninety-nine".