61136502188 has 12 divisors (see below), whose sum is σ = 107081839872. Its totient is φ = 30541690800.

The previous prime is 61136502157. The next prime is 61136502247. The reversal of 61136502188 is 88120563116.

It is an unprimeable number.

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, 6634895 + ... + 6644102.

It is an arithmetic number, because the mean of its divisors is an integer number (8923486656).

Almost surely, 2^61136502188 is an apocalyptic number.

It is an amenable number.

61136502188 is a deficient number, since it is larger than the sum of its proper divisors (45945337684).

61136502188 is a wasteful number, since it uses less digits than its factorization.

61136502188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13280152 (or 13280150 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 41.

The spelling of 61136502188 in words is "sixty-one billion, one hundred thirty-six million, five hundred two thousand, one hundred eighty-eight".