11778142051 has 8 divisors (see below), whose sum is σ = 12700281104. Its totient is φ = 10858307040.

The previous prime is 11778141961. The next prime is 11778142171. The reversal of 11778142051 is 15024187711.

11778142051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11778142051 - 2¹³ = 11778133859 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11778142051.

It is not an unprimeable number, because it can be changed into a prime (11778142751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 565380 + ... + 585841.

It is an arithmetic number, because the mean of its divisors is an integer number (1587535138).

Almost surely, 2^11778142051 is an apocalyptic number.

11778142051 is a deficient number, since it is larger than the sum of its proper divisors (922139053).

11778142051 is a wasteful number, since it uses less digits than its factorization.

11778142051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1152021.

The product of its (nonzero) digits is 15680, while the sum is 37.

The spelling of 11778142051 in words is "eleven billion, seven hundred seventy-eight million, one hundred forty-two thousand, fifty-one".