72683684153 has 4 divisors (see below), whose sum is σ = 72739725300. Its totient is φ = 72627643008.

The previous prime is 72683684149. The next prime is 72683684167. The reversal of 72683684153 is 35148638627.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 60136771984 + 12546912169 = 245228^2 + 112013^2 .

It is a cyclic number.

It is not a de Polignac number, because 72683684153 - 2² = 72683684149 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72683684095 and 72683684104.

It is not an unprimeable number, because it can be changed into a prime (72683684053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28018628 + ... + 28021221.

It is an arithmetic number, because the mean of its divisors is an integer number (18184931325).

Almost surely, 2^72683684153 is an apocalyptic number.

It is an amenable number.

72683684153 is a deficient number, since it is larger than the sum of its proper divisors (56041147).

72683684153 is a wasteful number, since it uses less digits than its factorization.

72683684153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56041146.

The product of its digits is 5806080, while the sum is 53.

The spelling of 72683684153 in words is "seventy-two billion, six hundred eighty-three million, six hundred eighty-four thousand, one hundred fifty-three".