2671208049649 has 2 divisors, whose sum is σ = 2671208049650. Its totient is φ = 2671208049648.

The previous prime is 2671208049589. The next prime is 2671208049673. The reversal of 2671208049649 is 9469408021762.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2649911901025 + 21296148624 = 1627855^2 + 145932^2 .

It is a cyclic number.

It is not a de Polignac number, because 2671208049649 - 2¹³ = 2671208041457 is a prime.

It is a super-2 number, since 2×2671208049649² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2671208049593 and 2671208049602.

It is not a weakly prime, because it can be changed into another prime (2671208049689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1335604024824 + 1335604024825.

It is an arithmetic number, because the mean of its divisors is an integer number (1335604024825).

Almost surely, 2^{2671208049649} is an apocalyptic number.

It is an amenable number.

2671208049649 is a deficient number, since it is larger than the sum of its proper divisors (1).

2671208049649 is an equidigital number, since it uses as much as digits as its factorization.

2671208049649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10450944, while the sum is 58.

The spelling of 2671208049649 in words is "two trillion, six hundred seventy-one billion, two hundred eight million, forty-nine thousand, six hundred forty-nine".