72275207710345 has 4 divisors (see below), whose sum is σ = 86730249252420. Its totient is φ = 57820166168272.

The previous prime is 72275207710339. The next prime is 72275207710357. The reversal of 72275207710345 is 54301770257227.

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 47263246279929 + 25011961430416 = 6874827^2 + 5001196^2 .

It is a cyclic number.

It is not a de Polignac number, because 72275207710345 - 2¹⁹ = 72275207186057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72275207710292 and 72275207710301.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7227520771030 + ... + 7227520771039.

It is an arithmetic number, because the mean of its divisors is an integer number (21682562313105).

Almost surely, 2^{72275207710345} is an apocalyptic number.

It is an amenable number.

72275207710345 is a deficient number, since it is larger than the sum of its proper divisors (14455041542075).

72275207710345 is a wasteful number, since it uses less digits than its factorization.

72275207710345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14455041542074.

The product of its (nonzero) digits is 5762400, while the sum is 52.

The spelling of 72275207710345 in words is "seventy-two trillion, two hundred seventy-five billion, two hundred seven million, seven hundred ten thousand, three hundred forty-five".