1298663418895 has 8 divisors (see below), whose sum is σ = 1558542646080. Its totient is φ = 1038833039520.

The previous prime is 1298663418869. The next prime is 1298663418917. The reversal of 1298663418895 is 5988143668921.

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

It is not a de Polignac number, because 1298663418895 - 2²¹ = 1298661321743 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 12153436 + ... + 12259825.

It is an arithmetic number, because the mean of its divisors is an integer number (194817830760).

Almost surely, 2^{1298663418895} is an apocalyptic number.

1298663418895 is a deficient number, since it is larger than the sum of its proper divisors (259879227185).

1298663418895 is a wasteful number, since it uses less digits than its factorization.

1298663418895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24423905.

The product of its digits is 179159040, while the sum is 70.

The spelling of 1298663418895 in words is "one trillion, two hundred ninety-eight billion, six hundred sixty-three million, four hundred eighteen thousand, eight hundred ninety-five".