12698395457 has 48 divisors (see below), whose sum is σ = 15015168000. Its totient is φ = 10698985440.

The previous prime is 12698395447. The next prime is 12698395517. The reversal of 12698395457 is 75459389621.

It is a happy number.

It is not a de Polignac number, because 12698395457 - 2⁴ = 12698395441 is a prime.

It is a super-2 number, since 2×12698395457² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12698395396 and 12698395405.

It is not an unprimeable number, because it can be changed into a prime (12698395417) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 25245068 + ... + 25245570.

It is an arithmetic number, because the mean of its divisors is an integer number (312816000).

Almost surely, 2^12698395457 is an apocalyptic number.

It is an amenable number.

12698395457 is a deficient number, since it is larger than the sum of its proper divisors (2316772543).

12698395457 is a wasteful number, since it uses less digits than its factorization.

12698395457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762 (or 751 counting only the distinct ones).

The product of its digits is 16329600, while the sum is 59.

The spelling of 12698395457 in words is "twelve billion, six hundred ninety-eight million, three hundred ninety-five thousand, four hundred fifty-seven".