338812179749 has 2 divisors, whose sum is σ = 338812179750. Its totient is φ = 338812179748.

The previous prime is 338812179637. The next prime is 338812179773. The reversal of 338812179749 is 947971218833.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 252664059649 + 86148120100 = 502657^2 + 293510^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-338812179749 is a prime.

It is a super-2 number, since 2×338812179749² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 338812179691 and 338812179700.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (338812179149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169406089874 + 169406089875.

It is an arithmetic number, because the mean of its divisors is an integer number (169406089875).

Almost surely, 2^338812179749 is an apocalyptic number.

It is an amenable number.

338812179749 is a deficient number, since it is larger than the sum of its proper divisors (1).

338812179749 is an equidigital number, since it uses as much as digits as its factorization.

338812179749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18289152, while the sum is 62.

The spelling of 338812179749 in words is "three hundred thirty-eight billion, eight hundred twelve million, one hundred seventy-nine thousand, seven hundred forty-nine".