72736279808903 has 2 divisors, whose sum is σ = 72736279808904. Its totient is φ = 72736279808902.

The previous prime is 72736279808891. The next prime is 72736279808911. The reversal of 72736279808903 is 30980897263727.

It is a strong prime.

It is an emirp because it is prime and its reverse (30980897263727) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72736279808903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72736279807903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36368139904451 + 36368139904452.

It is an arithmetic number, because the mean of its divisors is an integer number (36368139904452).

Almost surely, 2^{72736279808903} is an apocalyptic number.

72736279808903 is a deficient number, since it is larger than the sum of its proper divisors (1).

72736279808903 is an equidigital number, since it uses as much as digits as its factorization.

72736279808903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384072192, while the sum is 71.

The spelling of 72736279808903 in words is "seventy-two trillion, seven hundred thirty-six billion, two hundred seventy-nine million, eight hundred eight thousand, nine hundred three".