61043909248 has 64 divisors (see below), whose sum is σ = 140743353600. Its totient is φ = 25830484992.

The previous prime is 61043909237. The next prime is 61043909249. The reversal of 61043909248 is 84290934016.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 61043909198 and 61043909207.

It is not an unprimeable number, because it can be changed into a prime (61043909249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 360415 + ... + 501982.

It is an arithmetic number, because the mean of its divisors is an integer number (2199114900).

Almost surely, 2^61043909248 is an apocalyptic number.

It is an amenable number.

61043909248 is an abundant number, since it is smaller than the sum of its proper divisors (79699444352).

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

61043909248 is an equidigital number, since it uses as much as digits as its factorization.

61043909248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 862497 (or 862485 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 46.

The spelling of 61043909248 in words is "sixty-one billion, forty-three million, nine hundred nine thousand, two hundred forty-eight".