11618678400 has 384 divisors, whose sum is σ = 44813381760. Its totient is φ = 2590310400.

The previous prime is 11618678377. The next prime is 11618678417. The reversal of 11618678400 is 487681611.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2753092 + ... + 2757308.

It is an arithmetic number, because the mean of its divisors is an integer number (116701515).

Almost surely, 2^11618678400 is an apocalyptic number.

11618678400 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 11618678400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22406690880).

11618678400 is an abundant number, since it is smaller than the sum of its proper divisors (33194703360).

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

11618678400 is a wasteful number, since it uses less digits than its factorization.

11618678400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4292 (or 4275 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 42.

The spelling of 11618678400 in words is "eleven billion, six hundred eighteen million, six hundred seventy-eight thousand, four hundred".