73131262207 has 4 divisors (see below), whose sum is σ = 73553986440. Its totient is φ = 72708537976.

The previous prime is 73131262189. The next prime is 73131262289. The reversal of 73131262207 is 70226213137.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73131262207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73131266207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211361857 + ... + 211362202.

It is an arithmetic number, because the mean of its divisors is an integer number (18388496610).

Almost surely, 2^73131262207 is an apocalyptic number.

73131262207 is a deficient number, since it is larger than the sum of its proper divisors (422724233).

73131262207 is a wasteful number, since it uses less digits than its factorization.

73131262207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422724232.

The product of its (nonzero) digits is 21168, while the sum is 34.

The spelling of 73131262207 in words is "seventy-three billion, one hundred thirty-one million, two hundred sixty-two thousand, two hundred seven".