18708211483125 has 20 divisors (see below), whose sum is σ = 31170374762208. Its totient is φ = 9977712790000.

The previous prime is 18708211483121. The next prime is 18708211483183. The reversal of 18708211483125 is 52138411280781.

It is not a de Polignac number, because 18708211483125 - 2² = 18708211483121 is a prime.

It is a super-2 number, since 2×18708211483125² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18708211483121) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4988854521 + ... + 4988858270.

Almost surely, 2^{18708211483125} is an apocalyptic number.

18708211483125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18708211483125 is a deficient number, since it is larger than the sum of its proper divisors (12462163279083).

18708211483125 is an frugal number, since it uses more digits than its factorization.

18708211483125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9977712814 (or 9977712799 counting only the distinct ones).

The product of its (nonzero) digits is 860160, while the sum is 51.

The spelling of 18708211483125 in words is "eighteen trillion, seven hundred eight billion, two hundred eleven million, four hundred eighty-three thousand, one hundred twenty-five".