6486032557 has 2 divisors, whose sum is σ = 6486032558. Its totient is φ = 6486032556.

The previous prime is 6486032543. The next prime is 6486032561. The reversal of 6486032557 is 7552306846.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5492143881 + 993888676 = 74109^2 + 31526^2 .

It is a cyclic number.

It is not a de Polignac number, because 6486032557 - 2¹⁹ = 6485508269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6486032507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3243016278 + 3243016279.

It is an arithmetic number, because the mean of its divisors is an integer number (3243016279).

Almost surely, 2^6486032557 is an apocalyptic number.

It is an amenable number.

6486032557 is a deficient number, since it is larger than the sum of its proper divisors (1).

6486032557 is an equidigital number, since it uses as much as digits as its factorization.

6486032557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1209600, while the sum is 46.

The square root of 6486032557 is about 80535.9084942860. The cubic root of 6486032557 is about 1864.9178598520.

The spelling of 6486032557 in words is "six billion, four hundred eighty-six million, thirty-two thousand, five hundred fifty-seven".