61109284752 has 60 divisors (see below), whose sum is σ = 178456833984. Its totient is φ = 19484118720.

The previous prime is 61109284699. The next prime is 61109284763. The reversal of 61109284752 is 25748290116.

61109284752 is a `hidden beast` number, since 611 + 0 + 9 + 28 + 4 + 7 + 5 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 61109284698 and 61109284707.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 9222124 + ... + 9228747.

Almost surely, 2^61109284752 is an apocalyptic number.

It is an amenable number.

61109284752 is an abundant number, since it is smaller than the sum of its proper divisors (117347549232).

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

61109284752 is a wasteful number, since it uses less digits than its factorization.

61109284752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18450908 (or 18450899 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The spelling of 61109284752 in words is "sixty-one billion, one hundred nine million, two hundred eighty-four thousand, seven hundred fifty-two".