21010530759760 has 40 divisors (see below), whose sum is σ = 48858499507680. Its totient is φ = 8402661251712.

The previous prime is 21010530759689. The next prime is 21010530759761. The reversal of 21010530759760 is 6795703501012.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×21010530759760² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21010530759760.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21010530759761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23798962 + ... + 24666001.

It is an arithmetic number, because the mean of its divisors is an integer number (1221462487692).

Almost surely, 2^{21010530759760} is an apocalyptic number.

21010530759760 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21010530759760 is an abundant number, since it is smaller than the sum of its proper divisors (27847968747920).

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

21010530759760 is a wasteful number, since it uses less digits than its factorization.

21010530759760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48470395 (or 48470389 counting only the distinct ones).

The product of its (nonzero) digits is 396900, while the sum is 46.

The spelling of 21010530759760 in words is "twenty-one trillion, ten billion, five hundred thirty million, seven hundred fifty-nine thousand, seven hundred sixty".