1649247840012 has 48 divisors (see below), whose sum is σ = 3868235481600. Its totient is φ = 546894425088.

The previous prime is 1649247839989. The next prime is 1649247840083. The reversal of 1649247840012 is 2100487429461.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14900908 + ... + 15011180.

It is an arithmetic number, because the mean of its divisors is an integer number (80588239200).

Almost surely, 2^{1649247840012} is an apocalyptic number.

1649247840012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1649247840012 is an abundant number, since it is smaller than the sum of its proper divisors (2218987641588).

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

1649247840012 is a wasteful number, since it uses less digits than its factorization.

1649247840012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116742 (or 116740 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 48.

The spelling of 1649247840012 in words is "one trillion, six hundred forty-nine billion, two hundred forty-seven million, eight hundred forty thousand, twelve".