641954267083 has 2 divisors, whose sum is σ = 641954267084. Its totient is φ = 641954267082.

The previous prime is 641954267081. The next prime is 641954267153. The reversal of 641954267083 is 380762459146.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 641954267083 - 2¹ = 641954267081 is a prime.

Together with 641954267081, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (641954267081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 320977133541 + 320977133542.

It is an arithmetic number, because the mean of its divisors is an integer number (320977133542).

It is a 1-persistent number, because it is pandigital, but 2⋅641954267083 = 1283908534166 is not.

Almost surely, 2^641954267083 is an apocalyptic number.

641954267083 is a deficient number, since it is larger than the sum of its proper divisors (1).

641954267083 is an equidigital number, since it uses as much as digits as its factorization.

641954267083 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8709120, while the sum is 55.

The spelling of 641954267083 in words is "six hundred forty-one billion, nine hundred fifty-four million, two hundred sixty-seven thousand, eighty-three".