72007210605 has 64 divisors (see below), whose sum is σ = 126231664896. Its totient is φ = 34761216000.

The previous prime is 72007210577. The next prime is 72007210609. The reversal of 72007210605 is 50601270027.

It is not a de Polignac number, because 72007210605 - 2¹¹ = 72007208557 is a prime.

It is a super-2 number, since 2×72007210605² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72007210609) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 67866775 + ... + 67867835.

It is an arithmetic number, because the mean of its divisors is an integer number (1972369764).

Almost surely, 2^72007210605 is an apocalyptic number.

It is an amenable number.

72007210605 is a deficient number, since it is larger than the sum of its proper divisors (54224454291).

72007210605 is a wasteful number, since it uses less digits than its factorization.

72007210605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2478.

The product of its (nonzero) digits is 5880, while the sum is 30.

The spelling of 72007210605 in words is "seventy-two billion, seven million, two hundred ten thousand, six hundred five".