1298468864520 has 96 divisors (see below), whose sum is σ = 4220438040000. Its totient is φ = 346224375936.

The previous prime is 1298468864513. The next prime is 1298468864551. The reversal of 1298468864520 is 254688648921.

1298468864520 is a `hidden beast` number, since 1 + 2 + 9 + 8 + 46 + 8 + 8 + 64 + 520 = 666.

It is a super-2 number, since 2×1298468864520² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3607869 + ... + 3951411.

It is an arithmetic number, because the mean of its divisors is an integer number (43962896250).

Almost surely, 2^{1298468864520} is an apocalyptic number.

1298468864520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1298468864520 is an abundant number, since it is smaller than the sum of its proper divisors (2921969175480).

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

1298468864520 is a wasteful number, since it uses less digits than its factorization.

1298468864520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354059 (or 354052 counting only the distinct ones).

The product of its (nonzero) digits is 53084160, while the sum is 63.

The spelling of 1298468864520 in words is "one trillion, two hundred ninety-eight billion, four hundred sixty-eight million, eight hundred sixty-four thousand, five hundred twenty".