11019474320 has 80 divisors (see below), whose sum is σ = 26108678640. Its totient is φ = 4324147200.

The previous prime is 11019474233. The next prime is 11019474329. The reversal of 11019474320 is 2347491011.

It can be written as a sum of positive squares in 8 ways, for example, as 634233856 + 10385240464 = 25184^2 + 101908^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (11019474329) 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, 1993160 + ... + 1998680.

It is an arithmetic number, because the mean of its divisors is an integer number (326358483).

Almost surely, 2^11019474320 is an apocalyptic number.

11019474320 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 11019474320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13054339320).

11019474320 is an abundant number, since it is smaller than the sum of its proper divisors (15089204320).

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

11019474320 is a wasteful number, since it uses less digits than its factorization.

11019474320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6004 (or 5998 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 32.

The spelling of 11019474320 in words is "eleven billion, nineteen million, four hundred seventy-four thousand, three hundred twenty".