12693675451 has 4 divisors (see below), whose sum is σ = 12725330904. Its totient is φ = 12662020000.

The previous prime is 12693675361. The next prime is 12693675461. The reversal of 12693675451 is 15457639621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15457639621 = 193 ⋅80091397.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12693675451 is a prime.

It is a super-2 number, since 2×12693675451² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12693675395 and 12693675404.

It is not an unprimeable number, because it can be changed into a prime (12693675461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15827125 + ... + 15827926.

It is an arithmetic number, because the mean of its divisors is an integer number (3181332726).

Almost surely, 2^12693675451 is an apocalyptic number.

12693675451 is a deficient number, since it is larger than the sum of its proper divisors (31655453).

12693675451 is an equidigital number, since it uses as much as digits as its factorization.

12693675451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31655452.

The product of its digits is 1360800, while the sum is 49.

The spelling of 12693675451 in words is "twelve billion, six hundred ninety-three million, six hundred seventy-five thousand, four hundred fifty-one".