212885965642 has 16 divisors (see below), whose sum is σ = 367820974080. Its totient is φ = 90518441328.

The previous prime is 212885965601. The next prime is 212885965679. The reversal of 212885965642 is 246569588212.

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, 59864917 + ... + 59868472.

It is an arithmetic number, because the mean of its divisors is an integer number (22988810880).

Almost surely, 2^212885965642 is an apocalyptic number.

212885965642 is a deficient number, since it is larger than the sum of its proper divisors (154935008438).

212885965642 is a wasteful number, since it uses less digits than its factorization.

212885965642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119733525.

The product of its digits is 16588800, while the sum is 58.

The spelling of 212885965642 in words is "two hundred twelve billion, eight hundred eighty-five million, nine hundred sixty-five thousand, six hundred forty-two".