18358537872692 has 6 divisors (see below), whose sum is σ = 32127441277218. Its totient is φ = 9179268936344.

The previous prime is 18358537872679. The next prime is 18358537872713. The reversal of 18358537872692 is 29627873585381.

It can be written as a sum of positive squares in only one way, i.e., 13297720732816 + 5060817139876 = 3646604^2 + 2249626^2 .

It is a congruent number.

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 as a sum of consecutive naturals, namely, 2294817234083 + ... + 2294817234090.

It is an arithmetic number, because the mean of its divisors is an integer number (5354573546203).

Almost surely, 2^{18358537872692} is an apocalyptic number.

It is an amenable number.

18358537872692 is a deficient number, since it is larger than the sum of its proper divisors (13768903404526).

18358537872692 is a wasteful number, since it uses less digits than its factorization.

18358537872692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4589634468177 (or 4589634468175 counting only the distinct ones).

The product of its digits is 1219276800, while the sum is 74.

The spelling of 18358537872692 in words is "eighteen trillion, three hundred fifty-eight billion, five hundred thirty-seven million, eight hundred seventy-two thousand, six hundred ninety-two".