201784940042226 has 64 divisors (see below), whose sum is σ = 407502353399040. Its totient is φ = 66607308400640.

The previous prime is 201784940042219. The next prime is 201784940042233. The reversal of 201784940042226 is 622240049487102.

It is an interprime number because it is at equal distance from previous prime (201784940042219) and next prime (201784940042233).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6131587060 + ... + 6131619968.

It is an arithmetic number, because the mean of its divisors is an integer number (6367224271860).

Almost surely, 2^{201784940042226} is an apocalyptic number.

201784940042226 is an abundant number, since it is smaller than the sum of its proper divisors (205717413356814).

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

201784940042226 is a wasteful number, since it uses less digits than its factorization.

201784940042226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40771.

The product of its (nonzero) digits is 3096576, while the sum is 51.

The spelling of 201784940042226 in words is "two hundred one trillion, seven hundred eighty-four billion, nine hundred forty million, forty-two thousand, two hundred twenty-six".