621304468163 has 2 divisors, whose sum is σ = 621304468164. Its totient is φ = 621304468162.

The previous prime is 621304468007. The next prime is 621304468171. The reversal of 621304468163 is 361864403126.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 621304468163 - 2¹⁶ = 621304402627 is a prime.

It is not a weakly prime, because it can be changed into another prime (621304461163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310652234081 + 310652234082.

It is an arithmetic number, because the mean of its divisors is an integer number (310652234082).

Almost surely, 2^621304468163 is an apocalyptic number.

621304468163 is a deficient number, since it is larger than the sum of its proper divisors (1).

621304468163 is an equidigital number, since it uses as much as digits as its factorization.

621304468163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 497664, while the sum is 44.

The spelling of 621304468163 in words is "six hundred twenty-one billion, three hundred four million, four hundred sixty-eight thousand, one hundred sixty-three".