6921020132 has 24 divisors (see below), whose sum is σ = 13046656896. Its totient is φ = 3193534368.

The previous prime is 6921020087. The next prime is 6921020153. The reversal of 6921020132 is 2310201296.

It is a Harshad number since it is a multiple of its sum of digits (26).

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, 234803 + ... + 262629.

It is an arithmetic number, because the mean of its divisors is an integer number (543610704).

Almost surely, 2^6921020132 is an apocalyptic number.

It is an amenable number.

6921020132 is a deficient number, since it is larger than the sum of its proper divisors (6125636764).

6921020132 is a wasteful number, since it uses less digits than its factorization.

6921020132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32627 (or 32625 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 6921020132 is about 83192.6687394989. The cubic root of 6921020132 is about 1905.7095229510.

The spelling of 6921020132 in words is "six billion, nine hundred twenty-one million, twenty thousand, one hundred thirty-two".