641242883832 has 32 divisors (see below), whose sum is σ = 1672807524480. Its totient is φ = 204454252640.

The previous prime is 641242883807. The next prime is 641242883839. The reversal of 641242883832 is 238388242146.

It is a happy number.

It is a super-2 number, since 2×641242883832² (a number of 24 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641242883839) 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, 580835394 + ... + 580836497.

It is an arithmetic number, because the mean of its divisors is an integer number (52275235140).

Almost surely, 2^641242883832 is an apocalyptic number.

It is an amenable number.

641242883832 is an abundant number, since it is smaller than the sum of its proper divisors (1031564640648).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

641242883832 is a wasteful number, since it uses less digits than its factorization.

641242883832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1161671923 (or 1161671919 counting only the distinct ones).

The product of its digits is 3538944, while the sum is 51.

The spelling of 641242883832 in words is "six hundred forty-one billion, two hundred forty-two million, eight hundred eighty-three thousand, eight hundred thirty-two".