11778140136 has 64 divisors (see below), whose sum is σ = 33670166400. Its totient is φ = 3363349248.

The previous prime is 11778140131. The next prime is 11778140137. The reversal of 11778140136 is 63104187711.

It is a junction number, because it is equal to n+sod(n) for n = 11778140094 and 11778140103.

It is not an unprimeable number, because it can be changed into a prime (11778140131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 306610 + ... + 342878.

It is an arithmetic number, because the mean of its divisors is an integer number (526096350).

Almost surely, 2^11778140136 is an apocalyptic number.

It is an amenable number.

11778140136 is an abundant number, since it is smaller than the sum of its proper divisors (21892026264).

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

11778140136 is a wasteful number, since it uses less digits than its factorization.

11778140136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38218 (or 38214 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 39.

The spelling of 11778140136 in words is "eleven billion, seven hundred seventy-eight million, one hundred forty thousand, one hundred thirty-six".