72684037273301 has 4 divisors (see below), whose sum is σ = 72684054936012. Its totient is φ = 72684019610592.

The previous prime is 72684037273241. The next prime is 72684037273327. The reversal of 72684037273301 is 10337273048627.

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 71718286882225 + 965750391076 = 8468665^2 + 982726^2 .

It is a cyclic number.

It is not a de Polignac number, because 72684037273301 - 2²² = 72684033078997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72684037278301) 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, 959555 + ... + 12094991.

It is an arithmetic number, because the mean of its divisors is an integer number (18171013734003).

Almost surely, 2^{72684037273301} is an apocalyptic number.

It is an amenable number.

72684037273301 is a deficient number, since it is larger than the sum of its proper divisors (17662711).

72684037273301 is a wasteful number, since it uses less digits than its factorization.

72684037273301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17662710.

The product of its (nonzero) digits is 7112448, while the sum is 53.

The spelling of 72684037273301 in words is "seventy-two trillion, six hundred eighty-four billion, thirty-seven million, two hundred seventy-three thousand, three hundred one".