6849428472 has 128 divisors (see below), whose sum is σ = 19441440000. Its totient is φ = 2233692288.

The previous prime is 6849428461. The next prime is 6849428473. The reversal of 6849428472 is 2748249486.

6849428472 is a `hidden beast` number, since 6 + 8 + 494 + 2 + 84 + 72 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6849428473) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2917203 + ... + 2919549.

It is an arithmetic number, because the mean of its divisors is an integer number (151886250).

Almost surely, 2^6849428472 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 6849428472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9720720000).

6849428472 is an abundant number, since it is smaller than the sum of its proper divisors (12592011528).

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

6849428472 is a wasteful number, since it uses less digits than its factorization.

6849428472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2650 (or 2640 counting only the distinct ones).

The product of its digits is 6193152, while the sum is 54.

The square root of 6849428472 is about 82761.2739872943. The cubic root of 6849428472 is about 1899.1157909774.

The spelling of 6849428472 in words is "six billion, eight hundred forty-nine million, four hundred twenty-eight thousand, four hundred seventy-two".