641286630419 has 2 divisors, whose sum is σ = 641286630420. Its totient is φ = 641286630418.

The previous prime is 641286630323. The next prime is 641286630487. The reversal of 641286630419 is 914036682146.

641286630419 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-641286630419 is a prime.

It is a super-2 number, since 2×641286630419² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (641286630619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 320643315209 + 320643315210.

It is an arithmetic number, because the mean of its divisors is an integer number (320643315210).

Almost surely, 2^641286630419 is an apocalyptic number.

641286630419 is a deficient number, since it is larger than the sum of its proper divisors (1).

641286630419 is an equidigital number, since it uses as much as digits as its factorization.

641286630419 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1492992, while the sum is 50.

The spelling of 641286630419 in words is "six hundred forty-one billion, two hundred eighty-six million, six hundred thirty thousand, four hundred nineteen".