641212005783 has 16 divisors (see below), whose sum is σ = 863824711680. Its totient is φ = 423059342496.

The previous prime is 641212005739. The next prime is 641212005793. The reversal of 641212005783 is 387500212146.

It is not a de Polignac number, because 641212005783 - 2³² = 636917038487 is a prime.

It is a super-2 number, since 2×641212005783² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641212005713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2679735 + ... + 2909192.

It is an arithmetic number, because the mean of its divisors is an integer number (53989044480).

Almost surely, 2^641212005783 is an apocalyptic number.

641212005783 is a deficient number, since it is larger than the sum of its proper divisors (222612705897).

641212005783 is a wasteful number, since it uses less digits than its factorization.

641212005783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5589326.

The product of its (nonzero) digits is 80640, while the sum is 39.

The spelling of 641212005783 in words is "six hundred forty-one billion, two hundred twelve million, five thousand, seven hundred eighty-three".