621240070943 has 2 divisors, whose sum is σ = 621240070944. Its totient is φ = 621240070942.

The previous prime is 621240070931. The next prime is 621240070991. The reversal of 621240070943 is 349070042126.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 621240070943 - 2²⁰ = 621239022367 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 621240070897 and 621240070906.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (621240000943) 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, 310620035471 + 310620035472.

It is an arithmetic number, because the mean of its divisors is an integer number (310620035472).

Almost surely, 2^621240070943 is an apocalyptic number.

621240070943 is a deficient number, since it is larger than the sum of its proper divisors (1).

621240070943 is an equidigital number, since it uses as much as digits as its factorization.

621240070943 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 38.

The spelling of 621240070943 in words is "six hundred twenty-one billion, two hundred forty million, seventy thousand, nine hundred forty-three".