10821810588 has 24 divisors (see below), whose sum is σ = 25405809408. Its totient is φ = 3585139056.

The previous prime is 10821810509. The next prime is 10821810611. The reversal of 10821810588 is 88501812801.

It is a super-2 number, since 2×10821810588² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2764356 + ... + 2768267.

It is an arithmetic number, because the mean of its divisors is an integer number (1058575392).

Almost surely, 2^10821810588 is an apocalyptic number.

It is an amenable number.

10821810588 is an abundant number, since it is smaller than the sum of its proper divisors (14583998820).

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

10821810588 is a wasteful number, since it uses less digits than its factorization.

10821810588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5532793 (or 5532791 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 42.

The spelling of 10821810588 in words is "ten billion, eight hundred twenty-one million, eight hundred ten thousand, five hundred eighty-eight".