61322536018 has 16 divisors (see below), whose sum is σ = 92492315136. Its totient is φ = 30491858160.

The previous prime is 61322536001. The next prime is 61322536039. The reversal of 61322536018 is 81063522316.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1404505 + ... + 1447507.

It is an arithmetic number, because the mean of its divisors is an integer number (5780769696).

Almost surely, 2^61322536018 is an apocalyptic number.

61322536018 is a deficient number, since it is larger than the sum of its proper divisors (31169779118).

61322536018 is a wasteful number, since it uses less digits than its factorization.

61322536018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46929.

The product of its (nonzero) digits is 51840, while the sum is 37.

The spelling of 61322536018 in words is "sixty-one billion, three hundred twenty-two million, five hundred thirty-six thousand, eighteen".