61324387632 has 80 divisors (see below), whose sum is σ = 176425216000. Its totient is φ = 20394835776.

The previous prime is 61324387603. The next prime is 61324387633. The reversal of 61324387632 is 23678342316.

61324387632 is a `hidden beast` number, since 6 + 1 + 3 + 2 + 4 + 3 + 8 + 7 + 632 = 666.

It is not an unprimeable number, because it can be changed into a prime (61324387633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27969 + ... + 351327.

It is an arithmetic number, because the mean of its divisors is an integer number (2205315200).

Almost surely, 2^61324387632 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 61324387632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88212608000).

61324387632 is an abundant number, since it is smaller than the sum of its proper divisors (115100828368).

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

61324387632 is a wasteful number, since it uses less digits than its factorization.

61324387632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323815 (or 323803 counting only the distinct ones).

The product of its digits is 870912, while the sum is 45.

The spelling of 61324387632 in words is "sixty-one billion, three hundred twenty-four million, three hundred eighty-seven thousand, six hundred thirty-two".