12354405664435 has 4 divisors (see below), whose sum is σ = 14825286797328. Its totient is φ = 9883524531544.

The previous prime is 12354405664421. The next prime is 12354405664481. The reversal of 12354405664435 is 53446650445321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12354405664435 - 2²¹ = 12354403567283 is a prime.

It is a super-3 number, since 3×12354405664435³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1235440566439 + ... + 1235440566448.

It is an arithmetic number, because the mean of its divisors is an integer number (3706321699332).

Almost surely, 2^{12354405664435} is an apocalyptic number.

12354405664435 is a deficient number, since it is larger than the sum of its proper divisors (2470881132893).

12354405664435 is an equidigital number, since it uses as much as digits as its factorization.

12354405664435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2470881132892.

The product of its (nonzero) digits is 20736000, while the sum is 52.

The spelling of 12354405664435 in words is "twelve trillion, three hundred fifty-four billion, four hundred five million, six hundred sixty-four thousand, four hundred thirty-five".