1298461027187 has 8 divisors (see below), whose sum is σ = 1355112185856. Its totient is φ = 1241826229512.

The previous prime is 1298461027111. The next prime is 1298461027189. The reversal of 1298461027187 is 7817201648921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1298461027187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1298461027189) 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 7 ways as a sum of consecutive naturals, for example, 3927923 + ... + 4245644.

It is an arithmetic number, because the mean of its divisors is an integer number (169389023232).

Almost surely, 2^{1298461027187} is an apocalyptic number.

1298461027187 is a deficient number, since it is larger than the sum of its proper divisors (56651158669).

1298461027187 is an equidigital number, since it uses as much as digits as its factorization.

1298461027187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8180497.

The product of its (nonzero) digits is 2709504, while the sum is 56.

The spelling of 1298461027187 in words is "one trillion, two hundred ninety-eight billion, four hundred sixty-one million, twenty-seven thousand, one hundred eighty-seven".