7429528561 has 32 divisors (see below), whose sum is σ = 9733651200. Its totient is φ = 5506237440.

The previous prime is 7429528529. The next prime is 7429528583. The reversal of 7429528561 is 1658259247.

It is a cyclic number.

It is not a de Polignac number, because 7429528561 - 2⁵ = 7429528529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7429528501) 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, 129741 + ... + 178021.

It is an arithmetic number, because the mean of its divisors is an integer number (304176600).

Almost surely, 2^7429528561 is an apocalyptic number.

It is an amenable number.

7429528561 is a deficient number, since it is larger than the sum of its proper divisors (2304122639).

7429528561 is a wasteful number, since it uses less digits than its factorization.

7429528561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48409.

The product of its digits is 1209600, while the sum is 49.

The square root of 7429528561 is about 86194.7130687260. The cubic root of 7429528561 is about 1951.2837097179.

The spelling of 7429528561 in words is "seven billion, four hundred twenty-nine million, five hundred twenty-eight thousand, five hundred sixty-one".