72507144816583 has 2 divisors, whose sum is σ = 72507144816584. Its totient is φ = 72507144816582.

The previous prime is 72507144816539. The next prime is 72507144816629. The reversal of 72507144816583 is 38561844170527.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72507144816583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72507144816683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36253572408291 + 36253572408292.

It is an arithmetic number, because the mean of its divisors is an integer number (36253572408292).

Almost surely, 2^{72507144816583} is an apocalyptic number.

72507144816583 is a deficient number, since it is larger than the sum of its proper divisors (1).

72507144816583 is an equidigital number, since it uses as much as digits as its factorization.

72507144816583 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45158400, while the sum is 61.

The spelling of 72507144816583 in words is "seventy-two trillion, five hundred seven billion, one hundred forty-four million, eight hundred sixteen thousand, five hundred eighty-three".