11798998464 has 336 divisors, whose sum is σ = 36095391360. Its totient is φ = 3394406400.

The previous prime is 11798998433. The next prime is 11798998481. The reversal of 11798998464 is 46489989711.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a junction number, because it is equal to n+sod(n) for n = 11798998395 and 11798998404.

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, 55919319 + ... + 55919529.

It is an arithmetic number, because the mean of its divisors is an integer number (107426760).

Almost surely, 2^11798998464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11798998464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18047695680).

11798998464 is an abundant number, since it is smaller than the sum of its proper divisors (24296392896).

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

11798998464 is a wasteful number, since it uses less digits than its factorization.

11798998464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360 (or 339 counting only the distinct ones).

The product of its digits is 31352832, while the sum is 66.

The spelling of 11798998464 in words is "eleven billion, seven hundred ninety-eight million, nine hundred ninety-eight thousand, four hundred sixty-four".