18260928036 has 336 divisors, whose sum is σ = 53792650800. Its totient is φ = 5385968640.

The previous prime is 18260928031. The next prime is 18260928041. The reversal of 18260928036 is 63082906281.

18260928036 is a `hidden beast` number, since 1 + 8 + 2 + 609 + 2 + 8 + 0 + 36 = 666.

It is an interprime number because it is at equal distance from previous prime (18260928031) and next prime (18260928041).

It can be written as a sum of positive squares in 8 ways, for example, as 5838488100 + 12422439936 = 76410^2 + 111456^2 .

It is a super-2 number, since 2×18260928036² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18260927982 and 18260928000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18260928031) by changing a digit.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 122556490 + ... + 122556638.

It is an arithmetic number, because the mean of its divisors is an integer number (160097175).

Almost surely, 2^18260928036 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 18260928036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26896325400).

18260928036 is an abundant number, since it is smaller than the sum of its proper divisors (35531722764).

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

18260928036 is a wasteful number, since it uses less digits than its factorization.

18260928036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298 (or 281 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The spelling of 18260928036 in words is "eighteen billion, two hundred sixty million, nine hundred twenty-eight thousand, thirty-six".