72652764605 has 16 divisors (see below), whose sum is σ = 90197705520. Its totient is φ = 56112978432.

The previous prime is 72652764601. The next prime is 72652764617. The reversal of 72652764605 is 50646725627.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 3892387321 + 68760377284 = 62389^2 + 262222^2 .

It is a cyclic number.

It is not a de Polignac number, because 72652764605 - 2² = 72652764601 is a prime.

It is a super-3 number, since 3×72652764605³ (a number of 34 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72652764601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3090857 + ... + 3114273.

It is an arithmetic number, because the mean of its divisors is an integer number (5637356595).

Almost surely, 2^72652764605 is an apocalyptic number.

It is an amenable number.

72652764605 is a deficient number, since it is larger than the sum of its proper divisors (17544940915).

72652764605 is a wasteful number, since it uses less digits than its factorization.

72652764605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44848.

The product of its (nonzero) digits is 4233600, while the sum is 50.

The spelling of 72652764605 in words is "seventy-two billion, six hundred fifty-two million, seven hundred sixty-four thousand, six hundred five".