72430224187 has 2 divisors, whose sum is σ = 72430224188. Its totient is φ = 72430224186.

The previous prime is 72430224143. The next prime is 72430224193. The reversal of 72430224187 is 78142203427.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72430224187 is a prime.

It is a super-2 number, since 2×72430224187² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (72430224137) 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 as a sum of consecutive naturals, namely, 36215112093 + 36215112094.

It is an arithmetic number, because the mean of its divisors is an integer number (36215112094).

Almost surely, 2^72430224187 is an apocalyptic number.

72430224187 is a deficient number, since it is larger than the sum of its proper divisors (1).

72430224187 is an equidigital number, since it uses as much as digits as its factorization.

72430224187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 150528, while the sum is 40.

The spelling of 72430224187 in words is "seventy-two billion, four hundred thirty million, two hundred twenty-four thousand, one hundred eighty-seven".