61441547668 has 12 divisors (see below), whose sum is σ = 107537268832. Its totient is φ = 30716613720.

The previous prime is 61441547663. The next prime is 61441547677. The reversal of 61441547668 is 86674514416.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61441547663) 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 3 ways as a sum of consecutive naturals, for example, 1006680 + ... + 1065967.

Almost surely, 2^61441547668 is an apocalyptic number.

It is an amenable number.

61441547668 is a deficient number, since it is larger than the sum of its proper divisors (46095721164).

61441547668 is a wasteful number, since it uses less digits than its factorization.

61441547668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2080062 (or 2080060 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 52.

The spelling of 61441547668 in words is "sixty-one billion, four hundred forty-one million, five hundred forty-seven thousand, six hundred sixty-eight".