2638183347049 has 2 divisors, whose sum is σ = 2638183347050. Its totient is φ = 2638183347048.

The previous prime is 2638183347047. The next prime is 2638183347097. The reversal of 2638183347049 is 9407433818362.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2634713312400 + 3470034649 = 1623180^2 + 58907^2 .

It is a cyclic number.

It is not a de Polignac number, because 2638183347049 - 2¹ = 2638183347047 is a prime.

It is a super-2 number, since 2×2638183347049² (a number of 26 digits) contains 22 as substring.

Together with 2638183347047, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 2638183346984 and 2638183347002.

It is not a weakly prime, because it can be changed into another prime (2638183347047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1319091673524 + 1319091673525.

It is an arithmetic number, because the mean of its divisors is an integer number (1319091673525).

Almost surely, 2^{2638183347049} is an apocalyptic number.

It is an amenable number.

2638183347049 is a deficient number, since it is larger than the sum of its proper divisors (1).

2638183347049 is an equidigital number, since it uses as much as digits as its factorization.

2638183347049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20901888, while the sum is 58.

The spelling of 2638183347049 in words is "two trillion, six hundred thirty-eight billion, one hundred eighty-three million, three hundred forty-seven thousand, forty-nine".