72506263222 has 4 divisors (see below), whose sum is σ = 108759394836. Its totient is φ = 36253131610.

The previous prime is 72506263183. The next prime is 72506263237. The reversal of 72506263222 is 22236260527.

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

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 18126565804 + ... + 18126565807.

It is an arithmetic number, because the mean of its divisors is an integer number (27189848709).

Almost surely, 2^72506263222 is an apocalyptic number.

72506263222 is a deficient number, since it is larger than the sum of its proper divisors (36253131614).

72506263222 is a wasteful number, since it uses less digits than its factorization.

72506263222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36253131613.

The product of its (nonzero) digits is 120960, while the sum is 37.

The spelling of 72506263222 in words is "seventy-two billion, five hundred six million, two hundred sixty-three thousand, two hundred twenty-two".