7738369057 has 2 divisors, whose sum is σ = 7738369058. Its totient is φ = 7738369056.

The previous prime is 7738368997. The next prime is 7738369127. The reversal of 7738369057 is 7509638377.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7513249041 + 225120016 = 86679^2 + 15004^2 .

It is an emirp because it is prime and its reverse (7509638377) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7738369057 - 2¹⁵ = 7738336289 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7738368989 and 7738369007.

It is not a weakly prime, because it can be changed into another prime (7738369957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3869184528 + 3869184529.

It is an arithmetic number, because the mean of its divisors is an integer number (3869184529).

Almost surely, 2^7738369057 is an apocalyptic number.

It is an amenable number.

7738369057 is a deficient number, since it is larger than the sum of its proper divisors (1).

7738369057 is an equidigital number, since it uses as much as digits as its factorization.

7738369057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6667920, while the sum is 55.

The square root of 7738369057 is about 87968.0001875682. Note that the first 3 decimals coincide. The cubic root of 7738369057 is about 1977.9553304379.

The spelling of 7738369057 in words is "seven billion, seven hundred thirty-eight million, three hundred sixty-nine thousand, fifty-seven".