212836630426 has 16 divisors (see below), whose sum is σ = 366108067584. Its totient is φ = 90904380624.

The previous prime is 212836630393. The next prime is 212836630451. The reversal of 212836630426 is 624036638212.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25938930 + ... + 25947133.

It is an arithmetic number, because the mean of its divisors is an integer number (22881754224).

Almost surely, 2^212836630426 is an apocalyptic number.

212836630426 is a deficient number, since it is larger than the sum of its proper divisors (153271437158).

212836630426 is a wasteful number, since it uses less digits than its factorization.

212836630426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51886365.

The product of its (nonzero) digits is 497664, while the sum is 43.

The spelling of 212836630426 in words is "two hundred twelve billion, eight hundred thirty-six million, six hundred thirty thousand, four hundred twenty-six".