11878687548 has 432 divisors, whose sum is σ = 39570725376. Its totient is φ = 2935595520.

The previous prime is 11878687537. The next prime is 11878687553. The reversal of 11878687548 is 84578687811.

11878687548 is a `hidden beast` number, since 1 + 1 + 8 + 7 + 8 + 6 + 87 + 548 = 666.

It is a super-2 number, since 2×11878687548² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 65628018 + ... + 65628198.

Almost surely, 2^11878687548 is an apocalyptic number.

11878687548 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 11878687548, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19785362688).

11878687548 is an abundant number, since it is smaller than the sum of its proper divisors (27692037828).

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

11878687548 is a wasteful number, since it uses less digits than its factorization.

11878687548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314 (or 296 counting only the distinct ones).

The product of its digits is 24084480, while the sum is 63.

The spelling of 11878687548 in words is "eleven billion, eight hundred seventy-eight million, six hundred eighty-seven thousand, five hundred forty-eight".