641796013499 has 2 divisors, whose sum is σ = 641796013500. Its totient is φ = 641796013498.

The previous prime is 641796013483. The next prime is 641796013559. The reversal of 641796013499 is 994310697146.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 641796013499 - 2⁴ = 641796013483 is a prime.

It is not a weakly prime, because it can be changed into another prime (641790013499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 320898006749 + 320898006750.

It is an arithmetic number, because the mean of its divisors is an integer number (320898006750).

Almost surely, 2^641796013499 is an apocalyptic number.

641796013499 is a deficient number, since it is larger than the sum of its proper divisors (1).

641796013499 is an equidigital number, since it uses as much as digits as its factorization.

641796013499 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8817984, while the sum is 59.

The spelling of 641796013499 in words is "six hundred forty-one billion, seven hundred ninety-six million, thirteen thousand, four hundred ninety-nine".