7049161728 has 616 divisors, whose sum is σ = 25774513920. Its totient is φ = 1881169920.

The previous prime is 7049161711. The next prime is 7049161807. The reversal of 7049161728 is 8271619407.

It is a happy number.

7049161728 is a `hidden beast` number, since 7 + 0 + 4 + 9 + 1 + 617 + 28 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 99283933 + ... + 99284003.

Almost surely, 2^7049161728 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 7049161728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12887256960).

7049161728 is an abundant number, since it is smaller than the sum of its proper divisors (18725352192).

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

7049161728 is an equidigital number, since it uses as much as digits as its factorization.

7049161728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135 (or 102 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 45.

The square root of 7049161728 is about 83959.2861332205. The cubic root of 7049161728 is about 1917.3989779893.

The spelling of 7049161728 in words is "seven billion, forty-nine million, one hundred sixty-one thousand, seven hundred twenty-eight".