11878654968 has 128 divisors (see below), whose sum is σ = 34325928000. Its totient is φ = 3801530880.

The previous prime is 11878654951. The next prime is 11878654993. The reversal of 11878654968 is 86945687811.

11878654968 is a `hidden beast` number, since 1 + 1 + 8 + 7 + 86 + 549 + 6 + 8 = 666.

It is a super-2 number, since 2×11878654968² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1128546 + ... + 1139022.

Almost surely, 2^11878654968 is an apocalyptic number.

11878654968 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11878654968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17162964000).

11878654968 is an abundant number, since it is smaller than the sum of its proper divisors (22447273032).

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

11878654968 is a wasteful number, since it uses less digits than its factorization.

11878654968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10702 (or 10692 counting only the distinct ones).

The product of its digits is 23224320, while the sum is 63.

The spelling of 11878654968 in words is "eleven billion, eight hundred seventy-eight million, six hundred fifty-four thousand, nine hundred sixty-eight".