72904262860837 has 2 divisors, whose sum is σ = 72904262860838. Its totient is φ = 72904262860836.

The previous prime is 72904262860739. The next prime is 72904262860867. The reversal of 72904262860837 is 73806826240927.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41636550064321 + 31267712796516 = 6452639^2 + 5591754^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72904262860837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72904262860867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36452131430418 + 36452131430419.

It is an arithmetic number, because the mean of its divisors is an integer number (36452131430419).

Almost surely, 2^{72904262860837} is an apocalyptic number.

It is an amenable number.

72904262860837 is a deficient number, since it is larger than the sum of its proper divisors (1).

72904262860837 is an equidigital number, since it uses as much as digits as its factorization.

72904262860837 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 97542144, while the sum is 64.

The spelling of 72904262860837 in words is "seventy-two trillion, nine hundred four billion, two hundred sixty-two million, eight hundred sixty thousand, eight hundred thirty-seven".