1298063063856 has 80 divisors (see below), whose sum is σ = 3801345309440. Its totient is φ = 378382752000.

The previous prime is 1298063063839. The next prime is 1298063063873. The reversal of 1298063063856 is 6583603608921.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1298063063839) and next prime (1298063063873).

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a junction number, because it is equal to n+sod(n) for n = 1298063063796 and 1298063063805.

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, 54731020 + ... + 54754731.

It is an arithmetic number, because the mean of its divisors is an integer number (47516816368).

Almost surely, 2^{1298063063856} is an apocalyptic number.

1298063063856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1298063063856 is an abundant number, since it is smaller than the sum of its proper divisors (2503282245584).

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

1298063063856 is a wasteful number, since it uses less digits than its factorization.

1298063063856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109485794 (or 109485788 counting only the distinct ones).

The product of its (nonzero) digits is 11197440, while the sum is 57.

The spelling of 1298063063856 in words is "one trillion, two hundred ninety-eight billion, sixty-three million, sixty-three thousand, eight hundred fifty-six".