11752780338 has 24 divisors (see below), whose sum is σ = 27423154668. Its totient is φ = 3616240032.

The previous prime is 11752780337. The next prime is 11752780349. The reversal of 11752780338 is 83308725711.

11752780338 is a `hidden beast` number, since 1 + 17 + 527 + 80 + 3 + 38 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 11373582609 + 379197729 = 106647^2 + 19473^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11752780293 and 11752780302.

It is not an unprimeable number, because it can be changed into a prime (11752780337) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25112545 + ... + 25113012.

Almost surely, 2^11752780338 is an apocalyptic number.

11752780338 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

11752780338 is an abundant number, since it is smaller than the sum of its proper divisors (15670374330).

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

11752780338 is a wasteful number, since it uses less digits than its factorization.

11752780338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50225578 (or 50225575 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The spelling of 11752780338 in words is "eleven billion, seven hundred fifty-two million, seven hundred eighty thousand, three hundred thirty-eight".