57103487989 has 2 divisors, whose sum is σ = 57103487990. Its totient is φ = 57103487988.

The previous prime is 57103487983. The next prime is 57103488007. The reversal of 57103487989 is 98978430175.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37937300625 + 19166187364 = 194775^2 + 138442^2 .

It is a cyclic number.

It is not a de Polignac number, because 57103487989 - 2⁹ = 57103487477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57103487983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28551743994 + 28551743995.

It is an arithmetic number, because the mean of its divisors is an integer number (28551743995).

Almost surely, 2^57103487989 is an apocalyptic number.

It is an amenable number.

57103487989 is a deficient number, since it is larger than the sum of its proper divisors (1).

57103487989 is an equidigital number, since it uses as much as digits as its factorization.

57103487989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15240960, while the sum is 61.

The spelling of 57103487989 in words is "fifty-seven billion, one hundred three million, four hundred eighty-seven thousand, nine hundred eighty-nine".