214023207778 has 8 divisors (see below), whose sum is σ = 321038014572. Its totient is φ = 107010536256.

The previous prime is 214023207751. The next prime is 214023207793. The reversal of 214023207778 is 877702320412.

It can be written as a sum of positive squares in 2 ways, for example, as 185749794169 + 28273413609 = 430987^2 + 168147^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 253875 + ... + 701782.

Almost surely, 2^214023207778 is an apocalyptic number.

214023207778 is a deficient number, since it is larger than the sum of its proper divisors (107014806794).

214023207778 is a wasteful number, since it uses less digits than its factorization.

214023207778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1067636.

The product of its (nonzero) digits is 263424, while the sum is 43.

The spelling of 214023207778 in words is "two hundred fourteen billion, twenty-three million, two hundred seven thousand, seven hundred seventy-eight".