61004574648 has 48 divisors (see below), whose sum is σ = 166409388600. Its totient is φ = 20188560960.

The previous prime is 61004574643. The next prime is 61004574661. The reversal of 61004574648 is 84647540016.

61004574648 is a `hidden beast` number, since 6 + 10 + 0 + 4 + 574 + 64 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61004574643) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3037783 + ... + 3057798.

Almost surely, 2^61004574648 is an apocalyptic number.

It is an amenable number.

61004574648 is an abundant number, since it is smaller than the sum of its proper divisors (105404813952).

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

61004574648 is a wasteful number, since it uses less digits than its factorization.

61004574648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6095732 (or 6095725 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The spelling of 61004574648 in words is "sixty-one billion, four million, five hundred seventy-four thousand, six hundred forty-eight".