7745265427 has 2 divisors, whose sum is σ = 7745265428. Its totient is φ = 7745265426.

The previous prime is 7745265397. The next prime is 7745265439. The reversal of 7745265427 is 7245625477.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7745265427 - 2³¹ = 5597781779 is a prime.

It is not a weakly prime, because it can be changed into another prime (7745265487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3872632713 + 3872632714.

It is an arithmetic number, because the mean of its divisors is an integer number (3872632714).

Almost surely, 2^7745265427 is an apocalyptic number.

7745265427 is a deficient number, since it is larger than the sum of its proper divisors (1).

7745265427 is an equidigital number, since it uses as much as digits as its factorization.

7745265427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3292800, while the sum is 49.

The square root of 7745265427 is about 88007.1896324386. The cubic root of 7745265427 is about 1978.5427350768.

The spelling of 7745265427 in words is "seven billion, seven hundred forty-five million, two hundred sixty-five thousand, four hundred twenty-seven".