11782087938 has 24 divisors (see below), whose sum is σ = 26009516988. Its totient is φ = 3853261152.

The previous prime is 11782087903. The next prime is 11782087951. The reversal of 11782087938 is 83978028711.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11585723769 + 196364169 = 107637^2 + 14013^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6174145 + ... + 6176052.

Almost surely, 2^11782087938 is an apocalyptic number.

11782087938 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

11782087938 is an abundant number, since it is smaller than the sum of its proper divisors (14227429050).

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

11782087938 is a wasteful number, since it uses less digits than its factorization.

11782087938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12350258 (or 12350255 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 54.

The spelling of 11782087938 in words is "eleven billion, seven hundred eighty-two million, eighty-seven thousand, nine hundred thirty-eight".