325728235477 has 2 divisors, whose sum is σ = 325728235478. Its totient is φ = 325728235476.

The previous prime is 325728235433. The next prime is 325728235487. The reversal of 325728235477 is 774532827523.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 310872038481 + 14856196996 = 557559^2 + 121886^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-325728235477 is a prime.

It is a super-2 number, since 2×325728235477² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (325728235487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162864117738 + 162864117739.

It is an arithmetic number, because the mean of its divisors is an integer number (162864117739).

Almost surely, 2^325728235477 is an apocalyptic number.

It is an amenable number.

325728235477 is a deficient number, since it is larger than the sum of its proper divisors (1).

325728235477 is an equidigital number, since it uses as much as digits as its factorization.

325728235477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19756800, while the sum is 55.

The spelling of 325728235477 in words is "three hundred twenty-five billion, seven hundred twenty-eight million, two hundred thirty-five thousand, four hundred seventy-seven".