201181363794 has 32 divisors (see below), whose sum is σ = 447896138880. Its totient is φ = 66936488400.

The previous prime is 201181363783. The next prime is 201181363843. The reversal of 201181363794 is 497363181102.

201181363794 is a `hidden beast` number, since 2 + 0 + 1 + 1 + 8 + 1 + 3 + 637 + 9 + 4 = 666.

It is a super-3 number, since 3×201181363794³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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, 3414022 + ... + 3472449.

It is an arithmetic number, because the mean of its divisors is an integer number (13996754340).

Almost surely, 2^201181363794 is an apocalyptic number.

201181363794 is an abundant number, since it is smaller than the sum of its proper divisors (246714775086).

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

201181363794 is a wasteful number, since it uses less digits than its factorization.

201181363794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6887023 (or 6887017 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The spelling of 201181363794 in words is "two hundred one billion, one hundred eighty-one million, three hundred sixty-three thousand, seven hundred ninety-four".