18702061369744 has 45 divisors (see below), whose sum is σ = 36933638007553. Its totient is φ = 9174146386496.

The previous prime is 18702061369741. The next prime is 18702061369829. The reversal of 18702061369744 is 44796316020781.

It is a happy number.

The square root of 18702061369744 is 4324588.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 13482262112400 + 5219799257344 = 3671820^2 + 2284688^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18702061369741) by changing a digit.

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 8 ways as a sum of consecutive naturals, for example, 916802457 + ... + 916822855.

Almost surely, 2^{18702061369744} is an apocalyptic number.

18702061369744 is the 4324588-th square number.

It is an amenable number.

18702061369744 is a deficient number, since it is larger than the sum of its proper divisors (18231576637809).

18702061369744 is an frugal number, since it uses more digits than its factorization.

18702061369744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40912 (or 20454 counting only the distinct ones).

The product of its (nonzero) digits is 12192768, while the sum is 58.

The spelling of 18702061369744 in words is "eighteen trillion, seven hundred two billion, sixty-one million, three hundred sixty-nine thousand, seven hundred forty-four".