1828621826487 has 6 divisors (see below), whose sum is σ = 2641342638272. Its totient is φ = 1219081217652.

The previous prime is 1828621826431. The next prime is 1828621826491. The reversal of 1828621826487 is 7846281268281.

1828621826487 is a `hidden beast` number, since 1 + 8 + 2 + 86 + 218 + 264 + 87 = 666.

It is not a de Polignac number, because 1828621826487 - 2¹⁶ = 1828621760951 is a prime.

It is a super-2 number, since 2×1828621826487² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1828621826497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 101590101463 + ... + 101590101480.

Almost surely, 2^{1828621826487} is an apocalyptic number.

1828621826487 is a deficient number, since it is larger than the sum of its proper divisors (812720811785).

1828621826487 is a wasteful number, since it uses less digits than its factorization.

1828621826487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203180202949 (or 203180202946 counting only the distinct ones).

The product of its digits is 33030144, while the sum is 63.

The spelling of 1828621826487 in words is "one trillion, eight hundred twenty-eight billion, six hundred twenty-one million, eight hundred twenty-six thousand, four hundred eighty-seven".