72201843036 has 36 divisors (see below), whose sum is σ = 182585758992. Its totient is φ = 24057319104.

The previous prime is 72201843013. The next prime is 72201843053. The reversal of 72201843036 is 63034810227.

It is a happy number.

72201843036 is a `hidden beast` number, since 72 + 201 + 84 + 303 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×72201843036² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 326641 + ... + 501096.

Almost surely, 2^72201843036 is an apocalyptic number.

It is an amenable number.

72201843036 is an abundant number, since it is smaller than the sum of its proper divisors (110383915956).

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

72201843036 is a wasteful number, since it uses less digits than its factorization.

72201843036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830170 (or 830165 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The spelling of 72201843036 in words is "seventy-two billion, two hundred one million, eight hundred forty-three thousand, thirty-six".