343734945553 has 4 divisors (see below), whose sum is σ = 355587874740. Its totient is φ = 331882016368.

The previous prime is 343734945539. The next prime is 343734945629. The reversal of 343734945553 is 355549437343.

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

It can be written as a sum of positive squares in 2 ways, for example, as 92144423809 + 251590521744 = 303553^2 + 501588^2 .

It is a cyclic number.

It is not a de Polignac number, because 343734945553 - 2³⁷ = 206295992081 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 343734945494 and 343734945503.

It is not an unprimeable number, because it can be changed into a prime (343734946553) 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, 5926464550 + ... + 5926464607.

It is an arithmetic number, because the mean of its divisors is an integer number (88896968685).

Almost surely, 2^343734945553 is an apocalyptic number.

It is an amenable number.

343734945553 is a deficient number, since it is larger than the sum of its proper divisors (11852929187).

343734945553 is a wasteful number, since it uses less digits than its factorization.

343734945553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11852929186.

The product of its digits is 40824000, while the sum is 55.

The spelling of 343734945553 in words is "three hundred forty-three billion, seven hundred thirty-four million, nine hundred forty-five thousand, five hundred fifty-three".