6925915872 has 144 divisors (see below), whose sum is σ = 21952017360. Its totient is φ = 2058448896.

The previous prime is 6925915861. The next prime is 6925915907. The reversal of 6925915872 is 2785195296.

6925915872 is a `hidden beast` number, since 6 + 9 + 2 + 59 + 1 + 587 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55798 + ... + 130250.

It is an arithmetic number, because the mean of its divisors is an integer number (152444565).

Almost surely, 2^6925915872 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 6925915872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10976008680).

6925915872 is an abundant number, since it is smaller than the sum of its proper divisors (15026101488).

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

6925915872 is a wasteful number, since it uses less digits than its factorization.

6925915872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74505 (or 74494 counting only the distinct ones).

The product of its digits is 2721600, while the sum is 54.

The square root of 6925915872 is about 83222.0876450477. The cubic root of 6925915872 is about 1906.1587659398.

The spelling of 6925915872 in words is "six billion, nine hundred twenty-five million, nine hundred fifteen thousand, eight hundred seventy-two".