21042241526260 has 48 divisors (see below), whose sum is σ = 44287247471040. Its totient is φ = 8398128579840.

The previous prime is 21042241526237. The next prime is 21042241526263. The reversal of 21042241526260 is 6262514224012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21042241526263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 422416755 + ... + 422466565.

It is an arithmetic number, because the mean of its divisors is an integer number (922650988980).

Almost surely, 2^{21042241526260} is an apocalyptic number.

21042241526260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21042241526260 is an abundant number, since it is smaller than the sum of its proper divisors (23245005944780).

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

21042241526260 is a wasteful number, since it uses less digits than its factorization.

21042241526260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96496 (or 96494 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 37.

The spelling of 21042241526260 in words is "twenty-one trillion, forty-two billion, two hundred forty-one million, five hundred twenty-six thousand, two hundred sixty".