345420614435261 has 4 divisors (see below), whose sum is σ = 345429040807932. Its totient is φ = 345412188062592.

The previous prime is 345420614435213. The next prime is 345420614435321. The reversal of 345420614435261 is 162534416024543.

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 55301443012036 + 290119171423225 = 7436494^2 + 17032885^2 .

It is a cyclic number.

It is not a de Polignac number, because 345420614435261 - 2²² = 345420610240957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345420614435201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4213124846 + ... + 4213206831.

It is an arithmetic number, because the mean of its divisors is an integer number (86357260201983).

Almost surely, 2^{345420614435261} is an apocalyptic number.

It is an amenable number.

345420614435261 is a deficient number, since it is larger than the sum of its proper divisors (8426372671).

345420614435261 is an equidigital number, since it uses as much as digits as its factorization.

345420614435261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8426372670.

The product of its (nonzero) digits is 8294400, while the sum is 50.

The spelling of 345420614435261 in words is "three hundred forty-five trillion, four hundred twenty billion, six hundred fourteen million, four hundred thirty-five thousand, two hundred sixty-one".