10521755832487 has 2 divisors, whose sum is σ = 10521755832488. Its totient is φ = 10521755832486.

The previous prime is 10521755832457. The next prime is 10521755832491. The reversal of 10521755832487 is 78423855712501.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10521755832487 is a prime.

It is a super-3 number, since 3×10521755832487³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10521755832457) 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, 5260877916243 + 5260877916244.

It is an arithmetic number, because the mean of its divisors is an integer number (5260877916244).

Almost surely, 2^{10521755832487} is an apocalyptic number.

10521755832487 is a deficient number, since it is larger than the sum of its proper divisors (1).

10521755832487 is an equidigital number, since it uses as much as digits as its factorization.

10521755832487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18816000, while the sum is 58.

The spelling of 10521755832487 in words is "ten trillion, five hundred twenty-one billion, seven hundred fifty-five million, eight hundred thirty-two thousand, four hundred eighty-seven".