346061825509 has 2 divisors, whose sum is σ = 346061825510. Its totient is φ = 346061825508.

The previous prime is 346061825479. The next prime is 346061825573. The reversal of 346061825509 is 905528160643.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 337238041284 + 8823784225 = 580722^2 + 93935^2 .

It is a cyclic number.

It is not a de Polignac number, because 346061825509 - 2⁷ = 346061825381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (346061825209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173030912754 + 173030912755.

It is an arithmetic number, because the mean of its divisors is an integer number (173030912755).

Almost surely, 2^346061825509 is an apocalyptic number.

It is an amenable number.

346061825509 is a deficient number, since it is larger than the sum of its proper divisors (1).

346061825509 is an equidigital number, since it uses as much as digits as its factorization.

346061825509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1555200, while the sum is 49.

The spelling of 346061825509 in words is "three hundred forty-six billion, sixty-one million, eight hundred twenty-five thousand, five hundred nine".