212892494643 has 18 divisors (see below), whose sum is σ = 318911465964. Its totient is φ = 141923534724.

The previous prime is 212892494593. The next prime is 212892494687. The reversal of 212892494643 is 346494298212.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

212892494643 is a `hidden beast` number, since 2 + 1 + 2 + 8 + 92 + 494 + 64 + 3 = 666.

It is not a de Polignac number, because 212892494643 - 2⁶ = 212892494579 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212892494643.

It is not an unprimeable number, because it can be changed into a prime (212892494443) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 7177758 + ... + 7207356.

Almost surely, 2^212892494643 is an apocalyptic number.

212892494643 is a deficient number, since it is larger than the sum of its proper divisors (106018971321).

212892494643 is an frugal number, since it uses more digits than its factorization.

212892494643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59213 (or 29602 counting only the distinct ones).

The product of its digits is 5971968, while the sum is 54.

The spelling of 212892494643 in words is "two hundred twelve billion, eight hundred ninety-two million, four hundred ninety-four thousand, six hundred forty-three".