21843546260 has 24 divisors (see below), whose sum is σ = 45874721760. Its totient is φ = 8736794784.

The previous prime is 21843546239. The next prime is 21843546281. The reversal of 21843546260 is 6264534812.

It is an interprime number because it is at equal distance from previous prime (21843546239) and next prime (21843546281).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 336311 + ... + 395969.

It is an arithmetic number, because the mean of its divisors is an integer number (1911446740).

Almost surely, 2^21843546260 is an apocalyptic number.

21843546260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21843546260 is an abundant number, since it is smaller than the sum of its proper divisors (24031175500).

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

21843546260 is a wasteful number, since it uses less digits than its factorization.

21843546260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77975 (or 77973 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 41.

The spelling of 21843546260 in words is "twenty-one billion, eight hundred forty-three million, five hundred forty-six thousand, two hundred sixty".