212374434140278 has 4 divisors (see below), whose sum is σ = 318561651210420. Its totient is φ = 106187217070138.

The previous prime is 212374434140191. The next prime is 212374434140291. The reversal of 212374434140278 is 872041434473212.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53093608535068 + ... + 53093608535071.

It is an arithmetic number, because the mean of its divisors is an integer number (79640412802605).

Almost surely, 2^{212374434140278} is an apocalyptic number.

212374434140278 is a deficient number, since it is larger than the sum of its proper divisors (106187217070142).

212374434140278 is a wasteful number, since it uses less digits than its factorization.

212374434140278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106187217070141.

The product of its (nonzero) digits is 7225344, while the sum is 52.

The spelling of 212374434140278 in words is "two hundred twelve trillion, three hundred seventy-four billion, four hundred thirty-four million, one hundred forty thousand, two hundred seventy-eight".