61061742268 has 12 divisors (see below), whose sum is σ = 106979072200. Its totient is φ = 30496293072.

The previous prime is 61061742263. The next prime is 61061742311. The reversal of 61061742268 is 86224716016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61061742263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8640543 + ... + 8647606.

Almost surely, 2^61061742268 is an apocalyptic number.

It is an amenable number.

61061742268 is a deficient number, since it is larger than the sum of its proper divisors (45917329932).

61061742268 is a wasteful number, since it uses less digits than its factorization.

61061742268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17289036 (or 17289034 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 43.

The spelling of 61061742268 in words is "sixty-one billion, sixty-one million, seven hundred forty-two thousand, two hundred sixty-eight".