18862313945 has 8 divisors (see below), whose sum is σ = 22676618760. Its totient is φ = 15061956480.

The previous prime is 18862313933. The next prime is 18862313969. The reversal of 18862313945 is 54931326881.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 532132624 + 18330181321 = 23068^2 + 135389^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18862313945 - 2¹² = 18862309849 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18862313893 and 18862313902.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3483860 + ... + 3489269.

It is an arithmetic number, because the mean of its divisors is an integer number (2834577345).

Almost surely, 2^18862313945 is an apocalyptic number.

It is an amenable number.

18862313945 is a deficient number, since it is larger than the sum of its proper divisors (3814304815).

18862313945 is an equidigital number, since it uses as much as digits as its factorization.

18862313945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6973675.

The product of its digits is 1244160, while the sum is 50.

The spelling of 18862313945 in words is "eighteen billion, eight hundred sixty-two million, three hundred thirteen thousand, nine hundred forty-five".