72368519 has 2 divisors, whose sum is σ = 72368520. Its totient is φ = 72368518.

The previous prime is 72368501. The next prime is 72368531. The reversal of 72368519 is 91586327.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72368519 - 2²⁰ = 71319943 is a prime.

It is a super-2 number, since 2×72368519² = 10474405084506722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72368599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36184259 + 36184260.

It is an arithmetic number, because the mean of its divisors is an integer number (36184260).

Almost surely, 2^72368519 is an apocalyptic number.

72368519 is a deficient number, since it is larger than the sum of its proper divisors (1).

72368519 is an equidigital number, since it uses as much as digits as its factorization.

72368519 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 41.

The square root of 72368519 is about 8506.9688491260. The cubic root of 72368519 is about 416.7253259992.

The spelling of 72368519 in words is "seventy-two million, three hundred sixty-eight thousand, five hundred nineteen".