18715379365248 has 256 divisors, whose sum is σ = 57194719488000. Its totient is φ = 5383030210560.

The previous prime is 18715379365213. The next prime is 18715379365271. The reversal of 18715379365248 is 84256397351781.

It is a congruent number.

It is an unprimeable number.

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 in 31 ways as a sum of consecutive naturals, for example, 1411258 + ... + 6278726.

It is an arithmetic number, because the mean of its divisors is an integer number (223416873000).

Almost surely, 2^{18715379365248} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18715379365248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28597359744000).

18715379365248 is an abundant number, since it is smaller than the sum of its proper divisors (38479340122752).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18715379365248 is a wasteful number, since it uses less digits than its factorization.

18715379365248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4867553 (or 4867541 counting only the distinct ones).

The product of its digits is 304819200, while the sum is 69.

The spelling of 18715379365248 in words is "eighteen trillion, seven hundred fifteen billion, three hundred seventy-nine million, three hundred sixty-five thousand, two hundred forty-eight".