11878416634428 has 72 divisors (see below), whose sum is σ = 30559305600096. Its totient is φ = 3889320624000.

The previous prime is 11878416634411. The next prime is 11878416634501. The reversal of 11878416634428 is 82443661487811.

11878416634428 is a `hidden beast` number, since 1 + 1 + 87 + 8 + 41 + 66 + 34 + 428 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2008423 + ... + 5271678.

Almost surely, 2^{11878416634428} is an apocalyptic number.

11878416634428 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

11878416634428 is an abundant number, since it is smaller than the sum of its proper divisors (18680888965668).

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

11878416634428 is a wasteful number, since it uses less digits than its factorization.

11878416634428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7280915 (or 7280910 counting only the distinct ones).

The product of its digits is 49545216, while the sum is 63.

The spelling of 11878416634428 in words is "eleven trillion, eight hundred seventy-eight billion, four hundred sixteen million, six hundred thirty-four thousand, four hundred twenty-eight".