21076037853288 has 128 divisors (see below), whose sum is σ = 58754037381120. Its totient is φ = 6245365800960.

The previous prime is 21076037853179. The next prime is 21076037853307. The reversal of 21076037853288 is 88235873067012.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 13569831 + ... + 15043017.

It is an arithmetic number, because the mean of its divisors is an integer number (459015917040).

Almost surely, 2^{21076037853288} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21076037853288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29377018690560).

21076037853288 is an abundant number, since it is smaller than the sum of its proper divisors (37677999527832).

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

21076037853288 is a wasteful number, since it uses less digits than its factorization.

21076037853288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1474407 (or 1474403 counting only the distinct ones).

The product of its (nonzero) digits is 27095040, while the sum is 60.

The spelling of 21076037853288 in words is "twenty-one trillion, seventy-six billion, thirty-seven million, eight hundred fifty-three thousand, two hundred eighty-eight".