1232640006487 has 2 divisors, whose sum is σ = 1232640006488. Its totient is φ = 1232640006486.

The previous prime is 1232640006439. The next prime is 1232640006491. The reversal of 1232640006487 is 7846000462321.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1232640006487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1232640003487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616320003243 + 616320003244.

It is an arithmetic number, because the mean of its divisors is an integer number (616320003244).

Almost surely, 2^{1232640006487} is an apocalyptic number.

1232640006487 is a deficient number, since it is larger than the sum of its proper divisors (1).

1232640006487 is an equidigital number, since it uses as much as digits as its factorization.

1232640006487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 387072, while the sum is 43.

The spelling of 1232640006487 in words is "one trillion, two hundred thirty-two billion, six hundred forty million, six thousand, four hundred eighty-seven".