641252332263 has 8 divisors (see below), whose sum is σ = 855007475328. Its totient is φ = 427499372024.

The previous prime is 641252332261. The next prime is 641252332319. The reversal of 641252332263 is 362233252146.

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 641252332263 - 2¹ = 641252332261 is a prime.

It is a super-2 number, since 2×641252332263² (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 (641252332261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 349606 + ... + 1185212.

It is an arithmetic number, because the mean of its divisors is an integer number (106875934416).

Almost surely, 2^641252332263 is an apocalyptic number.

641252332263 is a deficient number, since it is larger than the sum of its proper divisors (213755143065).

641252332263 is a wasteful number, since it uses less digits than its factorization.

641252332263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091413.

The product of its digits is 311040, while the sum is 39.

The spelling of 641252332263 in words is "six hundred forty-one billion, two hundred fifty-two million, three hundred thirty-two thousand, two hundred sixty-three".