21061127088 has 40 divisors (see below), whose sum is σ = 60453236400. Its totient is φ = 7020375552.

The previous prime is 21061127083. The next prime is 21061127099. The reversal of 21061127088 is 88072116012.

21061127088 is a `hidden beast` number, since 2 + 10 + 611 + 27 + 0 + 8 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (21061127083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24375873 + ... + 24376736.

It is an arithmetic number, because the mean of its divisors is an integer number (1511330910).

Almost surely, 2^21061127088 is an apocalyptic number.

It is an amenable number.

21061127088 is an abundant number, since it is smaller than the sum of its proper divisors (39392109312).

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

21061127088 is a wasteful number, since it uses less digits than its factorization.

21061127088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48752626 (or 48752614 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 36.

The spelling of 21061127088 in words is "twenty-one billion, sixty-one million, one hundred twenty-seven thousand, eighty-eight".