21410754540648 has 128 divisors (see below), whose sum is σ = 60659269632000. Its totient is φ = 6238168267520.

The previous prime is 21410754540611. The next prime is 21410754540733. The reversal of 21410754540648 is 84604545701412.

It is a super-3 number, since 3×21410754540648³ (a number of 41 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21410754540648.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4020840 + ... + 7680407.

It is an arithmetic number, because the mean of its divisors is an integer number (473900544000).

Almost surely, 2^{21410754540648} is an apocalyptic number.

It is an amenable number.

21410754540648 is an abundant number, since it is smaller than the sum of its proper divisors (39248515091352).

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

21410754540648 is a wasteful number, since it uses less digits than its factorization.

21410754540648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11701535 (or 11701531 counting only the distinct ones).

The product of its (nonzero) digits is 4300800, while the sum is 51.

The spelling of 21410754540648 in words is "twenty-one trillion, four hundred ten billion, seven hundred fifty-four million, five hundred forty thousand, six hundred forty-eight".