11877269778 has 96 divisors (see below), whose sum is σ = 29585986560. Its totient is φ = 3405719520.

The previous prime is 11877269717. The next prime is 11877269813. The reversal of 11877269778 is 87796277811.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4900675 + ... + 4903097.

It is an arithmetic number, because the mean of its divisors is an integer number (308187360).

Almost surely, 2^11877269778 is an apocalyptic number.

11877269778 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11877269778, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14792993280).

11877269778 is an abundant number, since it is smaller than the sum of its proper divisors (17708716782).

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

11877269778 is a wasteful number, since it uses less digits than its factorization.

11877269778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3764 (or 3761 counting only the distinct ones).

The product of its digits is 16595712, while the sum is 63.

The spelling of 11877269778 in words is "eleven billion, eight hundred seventy-seven million, two hundred sixty-nine thousand, seven hundred seventy-eight".