18858901488 has 160 divisors (see below), whose sum is σ = 56537333760. Its totient is φ = 5305547520.

The previous prime is 18858901471. The next prime is 18858901519. The reversal of 18858901488 is 88410985881.

It is a super-2 number, since 2×18858901488² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 13032381 + ... + 13033827.

It is an arithmetic number, because the mean of its divisors is an integer number (353358336).

Almost surely, 2^18858901488 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 18858901488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28268666880).

18858901488 is an abundant number, since it is smaller than the sum of its proper divisors (37678432272).

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

18858901488 is a wasteful number, since it uses less digits than its factorization.

18858901488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2035 (or 2029 counting only the distinct ones).

The product of its (nonzero) digits is 5898240, while the sum is 60.

The spelling of 18858901488 in words is "eighteen billion, eight hundred fifty-eight million, nine hundred one thousand, four hundred eighty-eight".