343454655623 has 4 divisors (see below), whose sum is σ = 355297919640. Its totient is φ = 331611391608.

The previous prime is 343454655601. The next prime is 343454655659. The reversal of 343454655623 is 326556454343.

It is a happy number.

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 343454655623 - 2⁶ = 343454655559 is a prime.

It is a super-2 number, since 2×343454655623² (a number of 24 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 (343454655223) 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, 5921631965 + ... + 5921632022.

It is an arithmetic number, because the mean of its divisors is an integer number (88824479910).

Almost surely, 2^343454655623 is an apocalyptic number.

343454655623 is a deficient number, since it is larger than the sum of its proper divisors (11843264017).

343454655623 is a wasteful number, since it uses less digits than its factorization.

343454655623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11843264016.

The product of its digits is 15552000, while the sum is 50.

The spelling of 343454655623 in words is "three hundred forty-three billion, four hundred fifty-four million, six hundred fifty-five thousand, six hundred twenty-three".