72523470452210 has 32 divisors (see below), whose sum is σ = 130989852892080. Its totient is φ = 28909923294208.

The previous prime is 72523470452207. The next prime is 72523470452239. The reversal of 72523470452210 is 1225407432527.

It can be written as a sum of positive squares in 8 ways, for example, as 63850215740689 + 8673254711521 = 7990633^2 + 2945039^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 232582886 + ... + 232894494.

Almost surely, 2^{72523470452210} is an apocalyptic number.

72523470452210 is a deficient number, since it is larger than the sum of its proper divisors (58466382439870).

72523470452210 is a wasteful number, since it uses less digits than its factorization.

72523470452210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391342.

The product of its (nonzero) digits is 940800, while the sum is 44.

Adding to 72523470452210 its reverse (1225407432527), we get a palindrome (73748877884737).

The spelling of 72523470452210 in words is "seventy-two trillion, five hundred twenty-three billion, four hundred seventy million, four hundred fifty-two thousand, two hundred ten".