72023287244497 has 2 divisors, whose sum is σ = 72023287244498. Its totient is φ = 72023287244496.

The previous prime is 72023287244353. The next prime is 72023287244563. The reversal of 72023287244497 is 79444278232027.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71989387438336 + 33899806161 = 8484656^2 + 184119^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72023287244497 is a prime.

It is not a weakly prime, because it can be changed into another prime (72023287247497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36011643622248 + 36011643622249.

It is an arithmetic number, because the mean of its divisors is an integer number (36011643622249).

Almost surely, 2^{72023287244497} is an apocalyptic number.

It is an amenable number.

72023287244497 is a deficient number, since it is larger than the sum of its proper divisors (1).

72023287244497 is an equidigital number, since it uses as much as digits as its factorization.

72023287244497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75866112, while the sum is 61.

The spelling of 72023287244497 in words is "seventy-two trillion, twenty-three billion, two hundred eighty-seven million, two hundred forty-four thousand, four hundred ninety-seven".