10778867123 has 4 divisors (see below), whose sum is σ = 10779074880. Its totient is φ = 10778659368.

The previous prime is 10778867111. The next prime is 10778867137. The reversal of 10778867123 is 32176887701.

It is a happy number.

10778867123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 10778867123 - 2⁴ = 10778867107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10778867023) 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 3 ways as a sum of consecutive naturals, for example, 46793 + ... + 154101.

It is an arithmetic number, because the mean of its divisors is an integer number (2694768720).

Almost surely, 2^10778867123 is an apocalyptic number.

10778867123 is a deficient number, since it is larger than the sum of its proper divisors (207757).

10778867123 is a wasteful number, since it uses less digits than its factorization.

10778867123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207756.

The product of its (nonzero) digits is 790272, while the sum is 50.

The spelling of 10778867123 in words is "ten billion, seven hundred seventy-eight million, eight hundred sixty-seven thousand, one hundred twenty-three".