72127222603 has 4 divisors (see below), whose sum is σ = 74614368240. Its totient is φ = 69640076968.

The previous prime is 72127222589. The next prime is 72127222621. The reversal of 72127222603 is 30622272127.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30622272127 = 19 ⋅1611698533.

It is a cyclic number.

It is not a de Polignac number, because 72127222603 - 2⁹ = 72127222091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72127222103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1243572775 + ... + 1243572832.

It is an arithmetic number, because the mean of its divisors is an integer number (18653592060).

Almost surely, 2^72127222603 is an apocalyptic number.

72127222603 is a deficient number, since it is larger than the sum of its proper divisors (2487145637).

72127222603 is a wasteful number, since it uses less digits than its factorization.

72127222603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2487145636.

The product of its (nonzero) digits is 28224, while the sum is 34.

The spelling of 72127222603 in words is "seventy-two billion, one hundred twenty-seven million, two hundred twenty-two thousand, six hundred three".