641463648753 has 8 divisors (see below), whose sum is σ = 905595739488. Its totient is φ = 402486995264.

The previous prime is 641463648751. The next prime is 641463648773. The reversal of 641463648753 is 357846364146.

It is a happy number.

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 641463648753 - 2¹ = 641463648751 is a prime.

It is a super-2 number, since 2×641463648753² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 641463648693 and 641463648702.

It is not an unprimeable number, because it can be changed into a prime (641463648751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6288859251 + ... + 6288859352.

It is an arithmetic number, because the mean of its divisors is an integer number (113199467436).

Almost surely, 2^641463648753 is an apocalyptic number.

It is an amenable number.

641463648753 is a deficient number, since it is larger than the sum of its proper divisors (264132090735).

641463648753 is a wasteful number, since it uses less digits than its factorization.

641463648753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12577718623.

The product of its digits is 34836480, while the sum is 57.

The spelling of 641463648753 in words is "six hundred forty-one billion, four hundred sixty-three million, six hundred forty-eight thousand, seven hundred fifty-three".