12678753621619 has 8 divisors (see below), whose sum is σ = 12718894873680. Its totient is φ = 12638613283296.

The previous prime is 12678753621581. The next prime is 12678753621659. The reversal of 12678753621619 is 91612635787621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12678753621619 - 2⁷ = 12678753621491 is a prime.

It is a super-2 number, since 2×12678753621619² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12678753621659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37304352 + ... + 37642690.

It is an arithmetic number, because the mean of its divisors is an integer number (1589861859210).

Almost surely, 2^{12678753621619} is an apocalyptic number.

12678753621619 is a deficient number, since it is larger than the sum of its proper divisors (40141252061).

12678753621619 is a wasteful number, since it uses less digits than its factorization.

12678753621619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456869.

The product of its digits is 45722880, while the sum is 64.

The spelling of 12678753621619 in words is "twelve trillion, six hundred seventy-eight billion, seven hundred fifty-three million, six hundred twenty-one thousand, six hundred nineteen".