10421740609920 has 896 divisors, whose sum is σ = 39967329650400. Its totient is φ = 2589564764160.

The previous prime is 10421740609897. The next prime is 10421740610041. The reversal of 10421740609920 is 2990604712401.

10421740609920 is a `hidden beast` number, since 1 + 0 + 4 + 2 + 17 + 4 + 0 + 609 + 9 + 20 = 666.

It is a super-2 number, since 2×10421740609920² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 540733404 + ... + 540752676.

Almost surely, 2^{10421740609920} is an apocalyptic number.

10421740609920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10421740609920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19983664825200).

10421740609920 is an abundant number, since it is smaller than the sum of its proper divisors (29545589040480).

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

10421740609920 is an equidigital number, since it uses as much as digits as its factorization.

10421740609920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19390 (or 19363 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The spelling of 10421740609920 in words is "ten trillion, four hundred twenty-one billion, seven hundred forty million, six hundred nine thousand, nine hundred twenty".