61243574832 has 240 divisors, whose sum is σ = 193814693280. Its totient is φ = 17882726400.

The previous prime is 61243574773. The next prime is 61243574837. The reversal of 61243574832 is 23847534216.

61243574832 is a `hidden beast` number, since 6 + 1 + 2 + 43 + 574 + 8 + 32 = 666.

It is not an unprimeable number, because it can be changed into a prime (61243574837) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 30362688 + ... + 30364704.

It is an arithmetic number, because the mean of its divisors is an integer number (807561222).

Almost surely, 2^61243574832 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 61243574832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96907346640).

61243574832 is an abundant number, since it is smaller than the sum of its proper divisors (132571118448).

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

61243574832 is a wasteful number, since it uses less digits than its factorization.

61243574832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2732 (or 2723 counting only the distinct ones).

The product of its digits is 967680, while the sum is 45.

The spelling of 61243574832 in words is "sixty-one billion, two hundred forty-three million, five hundred seventy-four thousand, eight hundred thirty-two".