621312454424371 has 2 divisors, whose sum is σ = 621312454424372. Its totient is φ = 621312454424370.

The previous prime is 621312454424219. The next prime is 621312454424447. The reversal of 621312454424371 is 173424454213126.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 621312454424371 - 2¹¹ = 621312454422323 is a prime.

It is not a weakly prime, because it can be changed into another prime (621312484424371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310656227212185 + 310656227212186.

It is an arithmetic number, because the mean of its divisors is an integer number (310656227212186).

Almost surely, 2^{621312454424371} is an apocalyptic number.

621312454424371 is a deficient number, since it is larger than the sum of its proper divisors (1).

621312454424371 is an equidigital number, since it uses as much as digits as its factorization.

621312454424371 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3870720, while the sum is 49.

The spelling of 621312454424371 in words is "six hundred twenty-one trillion, three hundred twelve billion, four hundred fifty-four million, four hundred twenty-four thousand, three hundred seventy-one".