18403880140800 has 2040 divisors, whose sum is σ = 85051053354432. Its totient is φ = 3822059520000.

The previous prime is 18403880140777. The next prime is 18403880140873. The reversal of 18403880140800 is 804108830481.

18403880140800 is a `hidden beast` number, since 18 + 40 + 388 + 0 + 140 + 80 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 10218699900 + ... + 10218701700.

Almost surely, 2^{18403880140800} is an apocalyptic number.

18403880140800 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 18403880140800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42525526677216).

18403880140800 is an abundant number, since it is smaller than the sum of its proper divisors (66647173213632).

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

18403880140800 is an equidigital number, since it uses as much as digits as its factorization.

18403880140800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1873 (or 1829 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 45.

The spelling of 18403880140800 in words is "eighteen trillion, four hundred three billion, eight hundred eighty million, one hundred forty thousand, eight hundred".