21241554246 has 48 divisors (see below), whose sum is σ = 50694808320. Its totient is φ = 6374334960.

The previous prime is 21241554233. The next prime is 21241554307. The reversal of 21241554246 is 64245514212.

21241554246 is a `hidden beast` number, since 21 + 2 + 41 + 554 + 2 + 46 = 666.

21241554246 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 21241554246.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 500386 + ... + 541173.

It is an arithmetic number, because the mean of its divisors is an integer number (1056141840).

Almost surely, 2^21241554246 is an apocalyptic number.

21241554246 is an abundant number, since it is smaller than the sum of its proper divisors (29453254074).

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

21241554246 is a wasteful number, since it uses less digits than its factorization.

21241554246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1041681 (or 1041678 counting only the distinct ones).

The product of its digits is 76800, while the sum is 36.

The spelling of 21241554246 in words is "twenty-one billion, two hundred forty-one million, five hundred fifty-four thousand, two hundred forty-six".