11394281536 has 63 divisors (see below), whose sum is σ = 24873399453. Its totient is φ = 5174949120.

The previous prime is 11394281419. The next prime is 11394281567. The reversal of 11394281536 is 63518249311.

The square root of 11394281536 is 106744.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 464833600 + 10929447936 = 21560^2 + 104544^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11394281492 and 11394281501.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 9392866 + ... + 9394078.

Almost surely, 2^11394281536 is an apocalyptic number.

11394281536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

11394281536 is the 106744-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11394281536

11394281536 is an abundant number, since it is smaller than the sum of its proper divisors (13479117917).

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

11394281536 is an frugal number, since it uses more digits than its factorization.

11394281536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2460 (or 1226 counting only the distinct ones).

The product of its digits is 155520, while the sum is 43.

The spelling of 11394281536 in words is "eleven billion, three hundred ninety-four million, two hundred eighty-one thousand, five hundred thirty-six".