6537345732 has 120 divisors (see below), whose sum is σ = 18243973440. Its totient is φ = 2035212480.

The previous prime is 6537345709. The next prime is 6537345739. The reversal of 6537345732 is 2375437356.

6537345732 is a `hidden beast` number, since 6 + 5 + 3 + 73 + 4 + 573 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (6537345739) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 429598 + ... + 444554.

It is an arithmetic number, because the mean of its divisors is an integer number (152033112).

Almost surely, 2^6537345732 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 6537345732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9121986720).

6537345732 is an abundant number, since it is smaller than the sum of its proper divisors (11706627708).

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

6537345732 is a wasteful number, since it uses less digits than its factorization.

6537345732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15063 (or 15052 counting only the distinct ones).

The product of its digits is 1587600, while the sum is 45.

The square root of 6537345732 is about 80853.8541567438. The cubic root of 6537345732 is about 1869.8229437633.

The spelling of 6537345732 in words is "six billion, five hundred thirty-seven million, three hundred forty-five thousand, seven hundred thirty-two".