1249827484887 has 24 divisors (see below), whose sum is σ = 1837055622480. Its totient is φ = 818582526720.

The previous prime is 1249827484859. The next prime is 1249827484897. The reversal of 1249827484887 is 7884847289421.

1249827484887 is a `hidden beast` number, since 1 + 2 + 49 + 8 + 27 + 484 + 8 + 87 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-1249827484887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1249827484837) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 111087 + ... + 1584927.

It is an arithmetic number, because the mean of its divisors is an integer number (76543984270).

Almost surely, 2^{1249827484887} is an apocalyptic number.

1249827484887 is a deficient number, since it is larger than the sum of its proper divisors (587228137593).

1249827484887 is a wasteful number, since it uses less digits than its factorization.

1249827484887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1475503 (or 1475500 counting only the distinct ones).

The product of its digits is 462422016, while the sum is 72.

The spelling of 1249827484887 in words is "one trillion, two hundred forty-nine billion, eight hundred twenty-seven million, four hundred eighty-four thousand, eight hundred eighty-seven".