18049262400 has 504 divisors, whose sum is σ = 71664864544. Its totient is φ = 4441651200.

The previous prime is 18049262383. The next prime is 18049262437. The reversal of 18049262400 is 426294081.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 5052615 + ... + 5056185.

Almost surely, 2^18049262400 is an apocalyptic number.

18049262400 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 18049262400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35832432272).

18049262400 is an abundant number, since it is smaller than the sum of its proper divisors (53615602144).

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

18049262400 is a wasteful number, since it uses less digits than its factorization.

18049262400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3621 (or 3594 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The spelling of 18049262400 in words is "eighteen billion, forty-nine million, two hundred sixty-two thousand, four hundred".