1249091483868 has 36 divisors (see below), whose sum is σ = 3234436081968. Its totient is φ = 406208612160.

The previous prime is 1249091483839. The next prime is 1249091483869. The reversal of 1249091483868 is 8683841909421.

1249091483868 is a `hidden beast` number, since 1 + 2 + 4 + 9 + 0 + 91 + 483 + 8 + 68 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1249091483869) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 423132496 + ... + 423135447.

Almost surely, 2^{1249091483868} is an apocalyptic number.

1249091483868 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1249091483868 is an abundant number, since it is smaller than the sum of its proper divisors (1985344598100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1249091483868 is a wasteful number, since it uses less digits than its factorization.

1249091483868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846267994 (or 846267989 counting only the distinct ones).

The product of its (nonzero) digits is 23887872, while the sum is 63.

The spelling of 1249091483868 in words is "one trillion, two hundred forty-nine billion, ninety-one million, four hundred eighty-three thousand, eight hundred sixty-eight".