212942657435 has 4 divisors (see below), whose sum is σ = 255531188928. Its totient is φ = 170354125944.

The previous prime is 212942657381. The next prime is 212942657461. The reversal of 212942657435 is 534756249212.

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

It is a cyclic number.

It is not a de Polignac number, because 212942657435 - 2²⁸ = 212674221979 is a prime.

It is a Duffinian number.

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, 21294265739 + ... + 21294265748.

It is an arithmetic number, because the mean of its divisors is an integer number (63882797232).

Almost surely, 2^212942657435 is an apocalyptic number.

212942657435 is a deficient number, since it is larger than the sum of its proper divisors (42588531493).

212942657435 is an equidigital number, since it uses as much as digits as its factorization.

212942657435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42588531492.

The product of its digits is 3628800, while the sum is 50.

The spelling of 212942657435 in words is "two hundred twelve billion, nine hundred forty-two million, six hundred fifty-seven thousand, four hundred thirty-five".