7541647428 has 144 divisors (see below), whose sum is σ = 21634226880. Its totient is φ = 2033144064.

The previous prime is 7541647397. The next prime is 7541647429. The reversal of 7541647428 is 8247461457.

It is not an unprimeable number, because it can be changed into a prime (7541647429) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 3093426 + ... + 3095862.

Almost surely, 2^7541647428 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 7541647428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10817113440).

7541647428 is an abundant number, since it is smaller than the sum of its proper divisors (14092579452).

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

7541647428 is a wasteful number, since it uses less digits than its factorization.

7541647428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2754 (or 2745 counting only the distinct ones).

The product of its digits is 1505280, while the sum is 48.

The square root of 7541647428 is about 86842.6590334497. The cubic root of 7541647428 is about 1961.0503383974.

The spelling of 7541647428 in words is "seven billion, five hundred forty-one million, six hundred forty-seven thousand, four hundred twenty-eight".