872304927913 has 2 divisors, whose sum is σ = 872304927914. Its totient is φ = 872304927912.

The previous prime is 872304927889. The next prime is 872304927929. The reversal of 872304927913 is 319729403278.

It is a happy number.

872304927913 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 737257497769 + 135047430144 = 858637^2 + 367488^2 .

It is a cyclic number.

It is not a de Polignac number, because 872304927913 - 2²¹ = 872302830761 is a prime.

It is a super-2 number, since 2×872304927913² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (872304927953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 436152463956 + 436152463957.

It is an arithmetic number, because the mean of its divisors is an integer number (436152463957).

Almost surely, 2^872304927913 is an apocalyptic number.

It is an amenable number.

872304927913 is a deficient number, since it is larger than the sum of its proper divisors (1).

872304927913 is an equidigital number, since it uses as much as digits as its factorization.

872304927913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4572288, while the sum is 55.

The spelling of 872304927913 in words is "eight hundred seventy-two billion, three hundred four million, nine hundred twenty-seven thousand, nine hundred thirteen".