3011917918949 has 2 divisors, whose sum is σ = 3011917918950. Its totient is φ = 3011917918948.

The previous prime is 3011917918921. The next prime is 3011917918973. The reversal of 3011917918949 is 9498197191103.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1773411573025 + 1238506345924 = 1331695^2 + 1112882^2 .

It is a cyclic number.

It is not a de Polignac number, because 3011917918949 - 2⁸ = 3011917918693 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3011917918891 and 3011917918900.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3011917918249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1505958959474 + 1505958959475.

It is an arithmetic number, because the mean of its divisors is an integer number (1505958959475).

Almost surely, 2^{3011917918949} is an apocalyptic number.

It is an amenable number.

3011917918949 is a deficient number, since it is larger than the sum of its proper divisors (1).

3011917918949 is an equidigital number, since it uses as much as digits as its factorization.

3011917918949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4408992, while the sum is 62.

The spelling of 3011917918949 in words is "three trillion, eleven billion, nine hundred seventeen million, nine hundred eighteen thousand, nine hundred forty-nine".