212988037194 has 32 divisors (see below), whose sum is σ = 473738336640. Its totient is φ = 70931274336.

The previous prime is 212988037111. The next prime is 212988037259. The reversal of 212988037194 is 491730889212.

212988037194 is a `hidden beast` number, since 21 + 2 + 98 + 80 + 371 + 94 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 212988037194.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1738494 + ... + 1856969.

It is an arithmetic number, because the mean of its divisors is an integer number (14804323020).

Almost surely, 2^212988037194 is an apocalyptic number.

212988037194 is an abundant number, since it is smaller than the sum of its proper divisors (260750299446).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212988037194 is a wasteful number, since it uses less digits than its factorization.

212988037194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3596571 (or 3596565 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

The spelling of 212988037194 in words is "two hundred twelve billion, nine hundred eighty-eight million, thirty-seven thousand, one hundred ninety-four".