6401195587 has 2 divisors, whose sum is σ = 6401195588. Its totient is φ = 6401195586.

The previous prime is 6401195569. The next prime is 6401195617. The reversal of 6401195587 is 7855911046.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6401195587 - 2¹⁵ = 6401162819 is a prime.

It is not a weakly prime, because it can be changed into another prime (6401195557) 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, 3200597793 + 3200597794.

It is an arithmetic number, because the mean of its divisors is an integer number (3200597794).

Almost surely, 2^6401195587 is an apocalyptic number.

6401195587 is a deficient number, since it is larger than the sum of its proper divisors (1).

6401195587 is an equidigital number, since it uses as much as digits as its factorization.

6401195587 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 302400, while the sum is 46.

The square root of 6401195587 is about 80007.4720698011. The cubic root of 6401195587 is about 1856.7511392314.

The spelling of 6401195587 in words is "six billion, four hundred one million, one hundred ninety-five thousand, five hundred eighty-seven".