345420210277 has 2 divisors, whose sum is σ = 345420210278. Its totient is φ = 345420210276.

The previous prime is 345420210271. The next prime is 345420210307. The reversal of 345420210277 is 772012024543.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 317519853121 + 27900357156 = 563489^2 + 167034^2 .

It is a cyclic number.

It is not a de Polignac number, because 345420210277 - 2²³ = 345411821669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345420210271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172710105138 + 172710105139.

It is an arithmetic number, because the mean of its divisors is an integer number (172710105139).

Almost surely, 2^345420210277 is an apocalyptic number.

It is an amenable number.

345420210277 is a deficient number, since it is larger than the sum of its proper divisors (1).

345420210277 is an equidigital number, since it uses as much as digits as its factorization.

345420210277 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 94080, while the sum is 37.

The spelling of 345420210277 in words is "three hundred forty-five billion, four hundred twenty million, two hundred ten thousand, two hundred seventy-seven".