11632678840 has 32 divisors (see below), whose sum is σ = 26180113680. Its totient is φ = 4651900672.

The previous prime is 11632678829. The next prime is 11632678861. The reversal of 11632678840 is 4887623611.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134199 + ... + 203161.

Almost surely, 2^11632678840 is an apocalyptic number.

11632678840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11632678840 is an abundant number, since it is smaller than the sum of its proper divisors (14547434840).

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

11632678840 is a wasteful number, since it uses less digits than its factorization.

11632678840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73191 (or 73187 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 46.

The spelling of 11632678840 in words is "eleven billion, six hundred thirty-two million, six hundred seventy-eight thousand, eight hundred forty".