7138271617 has 2 divisors, whose sum is σ = 7138271618. Its totient is φ = 7138271616.

The previous prime is 7138271603. The next prime is 7138271629. The reversal of 7138271617 is 7161728317.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5505788401 + 1632483216 = 74201^2 + 40404^2 .

It is a cyclic number.

It is not a de Polignac number, because 7138271617 - 2¹⁹ = 7137747329 is a prime.

It is not a weakly prime, because it can be changed into another prime (7138271317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3569135808 + 3569135809.

It is an arithmetic number, because the mean of its divisors is an integer number (3569135809).

Almost surely, 2^7138271617 is an apocalyptic number.

It is an amenable number.

7138271617 is a deficient number, since it is larger than the sum of its proper divisors (1).

7138271617 is an equidigital number, since it uses as much as digits as its factorization.

7138271617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 98784, while the sum is 43.

The square root of 7138271617 is about 84488.2927807161. The cubic root of 7138271617 is about 1925.4445809160. Note that the first 3 decimals are identical.

The spelling of 7138271617 in words is "seven billion, one hundred thirty-eight million, two hundred seventy-one thousand, six hundred seventeen".