11421647600 has 120 divisors (see below), whose sum is σ = 29981862288. Its totient is φ = 4146841600.

The previous prime is 11421647581. The next prime is 11421647621. The reversal of 11421647600 is 674612411.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3505172 + ... + 3508428.

Almost surely, 2^11421647600 is an apocalyptic number.

11421647600 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 11421647600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14990931144).

11421647600 is an abundant number, since it is smaller than the sum of its proper divisors (18560214688).

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

11421647600 is a wasteful number, since it uses less digits than its factorization.

11421647600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4083 (or 4072 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The spelling of 11421647600 in words is "eleven billion, four hundred twenty-one million, six hundred forty-seven thousand, six hundred".