12354405664423 has 8 divisors (see below), whose sum is σ = 12437541742592. Its totient is φ = 12271325859936.

The previous prime is 12354405664421. The next prime is 12354405664481. The reversal of 12354405664423 is 32446650445321.

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 12354405664423 - 2¹ = 12354405664421 is a prime.

It is a super-2 number, since 2×12354405664423² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12354405664421) 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, 13627815 + ... + 14506072.

It is an arithmetic number, because the mean of its divisors is an integer number (1554692717824).

Almost surely, 2^{12354405664423} is an apocalyptic number.

12354405664423 is a deficient number, since it is larger than the sum of its proper divisors (83136078169).

12354405664423 is a wasteful number, since it uses less digits than its factorization.

12354405664423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28136841.

The product of its (nonzero) digits is 8294400, while the sum is 49.

The spelling of 12354405664423 in words is "twelve trillion, three hundred fifty-four billion, four hundred five million, six hundred sixty-four thousand, four hundred twenty-three".