11389051284 has 72 divisors (see below), whose sum is σ = 29061319392. Its totient is φ = 3469564800.

The previous prime is 11389051279. The next prime is 11389051301. The reversal of 11389051284 is 48215098311.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 177027 + ... + 232629.

It is an arithmetic number, because the mean of its divisors is an integer number (403629436).

Almost surely, 2^11389051284 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 11389051284, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14530659696).

11389051284 is an abundant number, since it is smaller than the sum of its proper divisors (17672268108).

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

11389051284 is a wasteful number, since it uses less digits than its factorization.

11389051284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55737 (or 55722 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 42.

The spelling of 11389051284 in words is "eleven billion, three hundred eighty-nine million, fifty-one thousand, two hundred eighty-four".