339945863501 has 2 divisors, whose sum is σ = 339945863502. Its totient is φ = 339945863500.

The previous prime is 339945863479. The next prime is 339945863503. The reversal of 339945863501 is 105368549933.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 331764480100 + 8181383401 = 575990^2 + 90451^2 .

It is an emirp because it is prime and its reverse (105368549933) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 339945863501 - 2¹⁴ = 339945847117 is a prime.

It is a super-2 number, since 2×339945863501² (a number of 24 digits) contains 22 as substring.

Together with 339945863503, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (339945863503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169972931750 + 169972931751.

It is an arithmetic number, because the mean of its divisors is an integer number (169972931751).

Almost surely, 2^339945863501 is an apocalyptic number.

It is an amenable number.

339945863501 is a deficient number, since it is larger than the sum of its proper divisors (1).

339945863501 is an equidigital number, since it uses as much as digits as its factorization.

339945863501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10497600, while the sum is 56.

The spelling of 339945863501 in words is "three hundred thirty-nine billion, nine hundred forty-five million, eight hundred sixty-three thousand, five hundred one".