343454420515 has 16 divisors (see below), whose sum is σ = 421753942368. Its totient is φ = 268358501376.

The previous prime is 343454420513. The next prime is 343454420579. The reversal of 343454420515 is 515024454343.

It is a cyclic number.

It is not a de Polignac number, because 343454420515 - 2¹ = 343454420513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (343454420513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5147709 + ... + 5214001.

It is an arithmetic number, because the mean of its divisors is an integer number (26359621398).

Almost surely, 2^343454420515 is an apocalyptic number.

343454420515 is a deficient number, since it is larger than the sum of its proper divisors (78299521853).

343454420515 is a wasteful number, since it uses less digits than its factorization.

343454420515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90438.

The product of its (nonzero) digits is 576000, while the sum is 40.

Adding to 343454420515 its reverse (515024454343), we get a palindrome (858478874858).

The spelling of 343454420515 in words is "three hundred forty-three billion, four hundred fifty-four million, four hundred twenty thousand, five hundred fifteen".