18585820364 has 6 divisors (see below), whose sum is σ = 32525185644. Its totient is φ = 9292910180.

The previous prime is 18585820313. The next prime is 18585820369. The reversal of 18585820364 is 46302858581.

It is not an unprimeable number, because it can be changed into a prime (18585820369) by changing a digit.

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 as a sum of consecutive naturals, namely, 2323227542 + ... + 2323227549.

It is an arithmetic number, because the mean of its divisors is an integer number (5420864274).

Almost surely, 2^18585820364 is an apocalyptic number.

It is an amenable number.

18585820364 is a deficient number, since it is larger than the sum of its proper divisors (13939365280).

18585820364 is a wasteful number, since it uses less digits than its factorization.

18585820364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4646455095 (or 4646455093 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 50.

The spelling of 18585820364 in words is "eighteen billion, five hundred eighty-five million, eight hundred twenty thousand, three hundred sixty-four".