61185868 has 6 divisors (see below), whose sum is σ = 107075276. Its totient is φ = 30592932.

The previous prime is 61185863. The next prime is 61185881. The reversal of 61185868 is 86858116.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (61185863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7648230 + ... + 7648237.

Almost surely, 2^61185868 is an apocalyptic number.

It is an amenable number.

61185868 is a deficient number, since it is larger than the sum of its proper divisors (45889408).

61185868 is a wasteful number, since it uses less digits than its factorization.

61185868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15296471 (or 15296469 counting only the distinct ones).

The product of its digits is 92160, while the sum is 43.

The square root of 61185868 is about 7822.1396049930. The cubic root of 61185868 is about 394.0491319595.

The spelling of 61185868 in words is "sixty-one million, one hundred eighty-five thousand, eight hundred sixty-eight".