1298063063855 has 12 divisors (see below), whose sum is σ = 1654693540680. Its totient is φ = 977365129344.

The previous prime is 1298063063839. The next prime is 1298063063873. The reversal of 1298063063855 is 5583603608921.

It is not a de Polignac number, because 1298063063855 - 2⁴ = 1298063063839 is a prime.

It is a super-2 number, since 2×1298063063855² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1298063063855.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 449155325 + ... + 449158214.

It is an arithmetic number, because the mean of its divisors is an integer number (137891128390).

Almost surely, 2^{1298063063855} is an apocalyptic number.

1298063063855 is a deficient number, since it is larger than the sum of its proper divisors (356630476825).

1298063063855 is an equidigital number, since it uses as much as digits as its factorization.

1298063063855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 898313578 (or 898313561 counting only the distinct ones).

The product of its (nonzero) digits is 9331200, while the sum is 56.

The spelling of 1298063063855 in words is "one trillion, two hundred ninety-eight billion, sixty-three million, sixty-three thousand, eight hundred fifty-five".