1287491712010 has 64 divisors (see below), whose sum is σ = 2739429310464. Its totient is φ = 426336552000.

The previous prime is 1287491711929. The next prime is 1287491712011. The reversal of 1287491712010 is 102171947821.

It is not an unprimeable number, because it can be changed into a prime (1287491712011) 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 in 31 ways as a sum of consecutive naturals, for example, 501735 + ... + 1681285.

It is an arithmetic number, because the mean of its divisors is an integer number (42803582976).

Almost surely, 2^{1287491712010} is an apocalyptic number.

1287491712010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1287491712010 is an abundant number, since it is smaller than the sum of its proper divisors (1451937598454).

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

1287491712010 is a wasteful number, since it uses less digits than its factorization.

1287491712010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1180099.

The product of its (nonzero) digits is 56448, while the sum is 43.

The spelling of 1287491712010 in words is "one trillion, two hundred eighty-seven billion, four hundred ninety-one million, seven hundred twelve thousand, ten".