72274187603 has 4 divisors (see below), whose sum is σ = 72275128800. Its totient is φ = 72273246408.

The previous prime is 72274187597. The next prime is 72274187621. The reversal of 72274187603 is 30678147227.

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

It is a cyclic number.

It is not a de Polignac number, because 72274187603 - 2⁸ = 72274187347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72274187203) 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, 344075 + ... + 512772.

It is an arithmetic number, because the mean of its divisors is an integer number (18068782200).

Almost surely, 2^72274187603 is an apocalyptic number.

72274187603 is a deficient number, since it is larger than the sum of its proper divisors (941197).

72274187603 is an equidigital number, since it uses as much as digits as its factorization.

72274187603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 941196.

The product of its (nonzero) digits is 790272, while the sum is 47.

The spelling of 72274187603 in words is "seventy-two billion, two hundred seventy-four million, one hundred eighty-seven thousand, six hundred three".