4089315821957 has 2 divisors, whose sum is σ = 4089315821958. Its totient is φ = 4089315821956.

The previous prime is 4089315821951. The next prime is 4089315821963. The reversal of 4089315821957 is 7591285139804.

4089315821957 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (4089315821951) and next prime (4089315821963).

It can be written as a sum of positive squares in only one way, i.e., 4016332638241 + 72983183716 = 2004079^2 + 270154^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4089315821957 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4089315821957.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4089315821951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2044657910978 + 2044657910979.

It is an arithmetic number, because the mean of its divisors is an integer number (2044657910979).

Almost surely, 2^{4089315821957} is an apocalyptic number.

It is an amenable number.

4089315821957 is a deficient number, since it is larger than the sum of its proper divisors (1).

4089315821957 is an equidigital number, since it uses as much as digits as its factorization.

4089315821957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21772800, while the sum is 62.

The spelling of 4089315821957 in words is "four trillion, eighty-nine billion, three hundred fifteen million, eight hundred twenty-one thousand, nine hundred fifty-seven".