11778142050 has 36 divisors (see below), whose sum is σ = 31643942850. Its totient is φ = 3140837760.

The previous prime is 11778141961. The next prime is 11778142171. The reversal of 11778142050 is 5024187711.

11778142050 is a `hidden beast` number, since 117 + 78 + 1 + 420 + 50 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 7767073161 + 4011068889 = 88131^2 + 63333^2 .

It is a super-4 number, since 4×11778142050⁴ (a number of 41 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11778141996 and 11778142014.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 13086375 + ... + 13087274.

Almost surely, 2^11778142050 is an apocalyptic number.

11778142050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11778142050 is an abundant number, since it is smaller than the sum of its proper divisors (19865800800).

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

11778142050 is a wasteful number, since it uses less digits than its factorization.

11778142050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26173667 (or 26173659 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 36.

The spelling of 11778142050 in words is "eleven billion, seven hundred seventy-eight million, one hundred forty-two thousand, fifty".