4636383128557 has 2 divisors, whose sum is σ = 4636383128558. Its totient is φ = 4636383128556.

The previous prime is 4636383128537. The next prime is 4636383128561. The reversal of 4636383128557 is 7558213836364.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4473707232996 + 162675895561 = 2115114^2 + 403331^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4636383128557 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4636383128495 and 4636383128504.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4636383128537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2318191564278 + 2318191564279.

It is an arithmetic number, because the mean of its divisors is an integer number (2318191564279).

Almost surely, 2^{4636383128557} is an apocalyptic number.

It is an amenable number.

4636383128557 is a deficient number, since it is larger than the sum of its proper divisors (1).

4636383128557 is an equidigital number, since it uses as much as digits as its factorization.

4636383128557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 87091200, while the sum is 61.

The spelling of 4636383128557 in words is "four trillion, six hundred thirty-six billion, three hundred eighty-three million, one hundred twenty-eight thousand, five hundred fifty-seven".