111775801426 has 16 divisors (see below), whose sum is σ = 169974098424. Its totient is φ = 55117891584.

The previous prime is 111775801421. The next prime is 111775801439. The reversal of 111775801426 is 624108577111.

111775801426 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 98574021225 + 13201780201 = 313965^2 + 114899^2 .

It is not an unprimeable number, because it can be changed into a prime (111775801421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2517370 + ... + 2561386.

Almost surely, 2^111775801426 is an apocalyptic number.

111775801426 is a deficient number, since it is larger than the sum of its proper divisors (58198296998).

111775801426 is a wasteful number, since it uses less digits than its factorization.

111775801426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61485.

The product of its (nonzero) digits is 94080, while the sum is 43.

The spelling of 111775801426 in words is "one hundred eleven billion, seven hundred seventy-five million, eight hundred one thousand, four hundred twenty-six".