11387738560 has 224 divisors, whose sum is σ = 30788579520. Its totient is φ = 3973939200.

The previous prime is 11387738539. The next prime is 11387738567. The reversal of 11387738560 is 6583778311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11387738567) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28684282 + ... + 28684678.

Almost surely, 2^11387738560 is an apocalyptic number.

11387738560 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 11387738560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15394289760).

11387738560 is an abundant number, since it is smaller than the sum of its proper divisors (19400840960).

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

11387738560 is a wasteful number, since it uses less digits than its factorization.

11387738560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735 (or 725 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 49.

It can be divided in two parts, 11387 and 738560, that added together give a palindrome (749947).

The spelling of 11387738560 in words is "eleven billion, three hundred eighty-seven million, seven hundred thirty-eight thousand, five hundred sixty".