11028372864 has 128 divisors (see below), whose sum is σ = 30233558880. Its totient is φ = 3559587840.

The previous prime is 11028372829. The next prime is 11028372869. The reversal of 11028372864 is 46827382011.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11028372869) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2154372 + ... + 2159484.

Almost surely, 2^11028372864 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 11028372864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15116779440).

11028372864 is an abundant number, since it is smaller than the sum of its proper divisors (19205186016).

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

11028372864 is a wasteful number, since it uses less digits than its factorization.

11028372864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5308 (or 5296 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 42.

The spelling of 11028372864 in words is "eleven billion, twenty-eight million, three hundred seventy-two thousand, eight hundred sixty-four".