18265437960 has 768 divisors, whose sum is σ = 74462976000. Its totient is φ = 3533967360.

The previous prime is 18265437901. The next prime is 18265437973. The reversal of 18265437960 is 6973456281.

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 191 ways as a sum of consecutive naturals, for example, 109373797 + ... + 109373963.

It is an arithmetic number, because the mean of its divisors is an integer number (96957000).

It is a 1-persistent number, because it is pandigital, but 2⋅18265437960 = 36530875920 is not.

Almost surely, 2^18265437960 is an apocalyptic number.

18265437960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18265437960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37231488000).

18265437960 is an abundant number, since it is smaller than the sum of its proper divisors (56197538040).

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

18265437960 is a wasteful number, since it uses less digits than its factorization.

18265437960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314 (or 303 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 51.

The spelling of 18265437960 in words is "eighteen billion, two hundred sixty-five million, four hundred thirty-seven thousand, nine hundred sixty".