345244442549 has 2 divisors, whose sum is σ = 345244442550. Its totient is φ = 345244442548.

The previous prime is 345244442461. The next prime is 345244442579. The reversal of 345244442549 is 945244442543.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 343407720100 + 1836722449 = 586010^2 + 42857^2 .

It is a cyclic number.

It is not a de Polignac number, because 345244442549 - 2²⁸ = 344976007093 is a prime.

It is a super-2 number, since 2×345244442549² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 345244442497 and 345244442506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345244442579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172622221274 + 172622221275.

It is an arithmetic number, because the mean of its divisors is an integer number (172622221275).

Almost surely, 2^345244442549 is an apocalyptic number.

It is an amenable number.

345244442549 is a deficient number, since it is larger than the sum of its proper divisors (1).

345244442549 is an equidigital number, since it uses as much as digits as its factorization.

345244442549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11059200, while the sum is 50.

The spelling of 345244442549 in words is "three hundred forty-five billion, two hundred forty-four million, four hundred forty-two thousand, five hundred forty-nine".