7564832540 has 12 divisors (see below), whose sum is σ = 15886148376. Its totient is φ = 3025933008.

The previous prime is 7564832537. The next prime is 7564832599. The reversal of 7564832540 is 452384657.

It is a junction number, because it is equal to n+sod(n) for n = 7564832491 and 7564832500.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189120794 + ... + 189120833.

It is an arithmetic number, because the mean of its divisors is an integer number (1323845698).

Almost surely, 2^7564832540 is an apocalyptic number.

It is an amenable number.

7564832540 is an abundant number, since it is smaller than the sum of its proper divisors (8321315836).

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

7564832540 is a wasteful number, since it uses less digits than its factorization.

7564832540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378241636 (or 378241634 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 44.

The square root of 7564832540 is about 86976.0457827326. The cubic root of 7564832540 is about 1963.0578864250.

The spelling of 7564832540 in words is "seven billion, five hundred sixty-four million, eight hundred thirty-two thousand, five hundred forty".