641127536639999 has 8 divisors (see below), whose sum is σ = 650193650645760. Its totient is φ = 632085187023576.

The previous prime is 641127536639857. The next prime is 641127536640001. The reversal of 641127536639999 is 999936635721146.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 641127536639999 - 2¹² = 641127536635903 is a prime.

It is a super-2 number, since 2×641127536639999² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641127536639099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5941042997 + ... + 5941150910.

It is an arithmetic number, because the mean of its divisors is an integer number (81274206330720).

Almost surely, 2^{641127536639999} is an apocalyptic number.

641127536639999 is a deficient number, since it is larger than the sum of its proper divisors (9066114005761).

641127536639999 is a wasteful number, since it uses less digits than its factorization.

641127536639999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11882194669.

The product of its digits is 3571283520, while the sum is 80.

The spelling of 641127536639999 in words is "six hundred forty-one trillion, one hundred twenty-seven billion, five hundred thirty-six million, six hundred thirty-nine thousand, nine hundred ninety-nine".