7731364273 has 2 divisors, whose sum is σ = 7731364274. Its totient is φ = 7731364272.

The previous prime is 7731364247. The next prime is 7731364313. The reversal of 7731364273 is 3724631377.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7671657744 + 59706529 = 87588^2 + 7727^2 .

It is a cyclic number.

It is not a de Polignac number, because 7731364273 - 2¹³ = 7731356081 is a prime.

It is not a weakly prime, because it can be changed into another prime (7731364213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3865682136 + 3865682137.

It is an arithmetic number, because the mean of its divisors is an integer number (3865682137).

Almost surely, 2^7731364273 is an apocalyptic number.

It is an amenable number.

7731364273 is a deficient number, since it is larger than the sum of its proper divisors (1).

7731364273 is an equidigital number, since it uses as much as digits as its factorization.

7731364273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 444528, while the sum is 43.

The square root of 7731364273 is about 87928.1767865114. The cubic root of 7731364273 is about 1977.3583341622.

The spelling of 7731364273 in words is "seven billion, seven hundred thirty-one million, three hundred sixty-four thousand, two hundred seventy-three".