11722898880 has 896 divisors, whose sum is σ = 52528988160. Its totient is φ = 2390446080.

The previous prime is 11722898849. The next prime is 11722898909. The reversal of 11722898880 is 8889822711.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 44573629 + ... + 44573891.

Almost surely, 2^11722898880 is an apocalyptic number.

11722898880 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 11722898880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26264494080).

11722898880 is an abundant number, since it is smaller than the sum of its proper divisors (40806089280).

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

11722898880 is a wasteful number, since it uses less digits than its factorization.

11722898880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374 (or 358 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 54.

The spelling of 11722898880 in words is "eleven billion, seven hundred twenty-two million, eight hundred ninety-eight thousand, eight hundred eighty".