18872231040 has 256 divisors, whose sum is σ = 71981481600. Its totient is φ = 4645416960.

The previous prime is 18872231033. The next prime is 18872231071. The reversal of 18872231040 is 4013227881.

It is a super-2 number, since 2×18872231040² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 18872230986 and 18872231004.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 182635 + ... + 266645.

Almost surely, 2^18872231040 is an apocalyptic number.

18872231040 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 18872231040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35990740800).

18872231040 is an abundant number, since it is smaller than the sum of its proper divisors (53109250560).

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

18872231040 is a wasteful number, since it uses less digits than its factorization.

18872231040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84052 (or 84034 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The spelling of 18872231040 in words is "eighteen billion, eight hundred seventy-two million, two hundred thirty-one thousand, forty".