41643981280 has 48 divisors (see below), whose sum is σ = 107327901744. Its totient is φ = 15143265280.

The previous prime is 41643981277. The next prime is 41643981287. The reversal of 41643981280 is 8218934614.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 41643981280.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41643981287) 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, 11828917 + ... + 11832436.

It is an arithmetic number, because the mean of its divisors is an integer number (2235997953).

Almost surely, 2^41643981280 is an apocalyptic number.

41643981280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

41643981280 is an abundant number, since it is smaller than the sum of its proper divisors (65683920464).

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

41643981280 is a wasteful number, since it uses less digits than its factorization.

41643981280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23661379 (or 23661371 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 46.

The spelling of 41643981280 in words is "forty-one billion, six hundred forty-three million, nine hundred eighty-one thousand, two hundred eighty".