72385633247 has 2 divisors, whose sum is σ = 72385633248. Its totient is φ = 72385633246.

The previous prime is 72385633223. The next prime is 72385633267. The reversal of 72385633247 is 74233658327.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72385633247 - 2⁶ = 72385633183 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72385633195 and 72385633204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72385633207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36192816623 + 36192816624.

It is an arithmetic number, because the mean of its divisors is an integer number (36192816624).

Almost surely, 2^72385633247 is an apocalyptic number.

72385633247 is a deficient number, since it is larger than the sum of its proper divisors (1).

72385633247 is an equidigital number, since it uses as much as digits as its factorization.

72385633247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5080320, while the sum is 50.

The spelling of 72385633247 in words is "seventy-two billion, three hundred eighty-five million, six hundred thirty-three thousand, two hundred forty-seven".