621622023683 has 2 divisors, whose sum is σ = 621622023684. Its totient is φ = 621622023682.

The previous prime is 621622023653. The next prime is 621622023703. The reversal of 621622023683 is 386320226126.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 621622023683 - 2⁶ = 621622023619 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 621622023683.

It is not a weakly prime, because it can be changed into another prime (621622023623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310811011841 + 310811011842.

It is an arithmetic number, because the mean of its divisors is an integer number (310811011842).

Almost surely, 2^621622023683 is an apocalyptic number.

621622023683 is a deficient number, since it is larger than the sum of its proper divisors (1).

621622023683 is an equidigital number, since it uses as much as digits as its factorization.

621622023683 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 248832, while the sum is 41.

The spelling of 621622023683 in words is "six hundred twenty-one billion, six hundred twenty-two million, twenty-three thousand, six hundred eighty-three".