6921300672 has 252 divisors, whose sum is σ = 23486597680. Its totient is φ = 1935774720.

The previous prime is 6921300613. The next prime is 6921300707. The reversal of 6921300672 is 2760031296.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 902229 + ... + 909867.

Almost surely, 2^6921300672 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 6921300672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11743298840).

6921300672 is an abundant number, since it is smaller than the sum of its proper divisors (16565297008).

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

6921300672 is a wasteful number, since it uses less digits than its factorization.

6921300672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7692 (or 7668 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 6921300672 is about 83194.3548084845. The cubic root of 6921300672 is about 1905.7352715890.

The spelling of 6921300672 in words is "six billion, nine hundred twenty-one million, three hundred thousand, six hundred seventy-two".