72685033205 has 16 divisors (see below), whose sum is σ = 91021656960. Its totient is φ = 55615357248.

The previous prime is 72685033199. The next prime is 72685033217. The reversal of 72685033205 is 50233058627.

It is a cyclic number.

It is not a de Polignac number, because 72685033205 - 2¹⁰ = 72685032181 is a prime.

It is a super-2 number, since 2×72685033205² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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, 2406779 + ... + 2436791.

It is an arithmetic number, because the mean of its divisors is an integer number (5688853560).

Almost surely, 2^72685033205 is an apocalyptic number.

It is an amenable number.

72685033205 is a deficient number, since it is larger than the sum of its proper divisors (18336623755).

72685033205 is a wasteful number, since it uses less digits than its factorization.

72685033205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51100.

The product of its (nonzero) digits is 302400, while the sum is 41.

The spelling of 72685033205 in words is "seventy-two billion, six hundred eighty-five million, thirty-three thousand, two hundred five".