12698411520 has 80 divisors (see below), whose sum is σ = 40595258880. Its totient is φ = 3386241024.

The previous prime is 12698411513. The next prime is 12698411533. The reversal of 12698411520 is 2511489621.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×12698411520² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 819040 + ... + 834399.

It is an arithmetic number, because the mean of its divisors is an integer number (507440736).

Almost surely, 2^12698411520 is an apocalyptic number.

12698411520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12698411520 is an abundant number, since it is smaller than the sum of its proper divisors (27896847360).

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

12698411520 is an equidigital number, since it uses as much as digits as its factorization.

12698411520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1653465 (or 1653449 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 39.

The spelling of 12698411520 in words is "twelve billion, six hundred ninety-eight million, four hundred eleven thousand, five hundred twenty".