641028693673 has 8 divisors (see below), whose sum is σ = 660187661760. Its totient is φ = 621966245040.

The previous prime is 641028693647. The next prime is 641028693703. The reversal of 641028693673 is 376396820146.

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 641028693673 - 2²⁵ = 640995139241 is a prime.

It is a super-2 number, since 2×641028693673² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (641028693623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24116383 + ... + 24142948.

It is an arithmetic number, because the mean of its divisors is an integer number (82523457720).

Almost surely, 2^641028693673 is an apocalyptic number.

It is an amenable number.

641028693673 is a deficient number, since it is larger than the sum of its proper divisors (19158968087).

641028693673 is a wasteful number, since it uses less digits than its factorization.

641028693673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48259727.

The product of its (nonzero) digits is 7838208, while the sum is 55.

The spelling of 641028693673 in words is "six hundred forty-one billion, twenty-eight million, six hundred ninety-three thousand, six hundred seventy-three".