641333002127 has 4 divisors (see below), whose sum is σ = 675087370680. Its totient is φ = 607578633576.

The previous prime is 641333002117. The next prime is 641333002147. The reversal of 641333002127 is 721200333146.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 641333002127 - 2²⁴ = 641316224911 is a prime.

It is a super-2 number, since 2×641333002127² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 641333002093 and 641333002102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641333002117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16877184248 + ... + 16877184285.

It is an arithmetic number, because the mean of its divisors is an integer number (168771842670).

Almost surely, 2^641333002127 is an apocalyptic number.

641333002127 is a deficient number, since it is larger than the sum of its proper divisors (33754368553).

641333002127 is a wasteful number, since it uses less digits than its factorization.

641333002127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33754368552.

The product of its (nonzero) digits is 18144, while the sum is 32.

The spelling of 641333002127 in words is "six hundred forty-one billion, three hundred thirty-three million, two thousand, one hundred twenty-seven".