2427538691 has 2 divisors, whose sum is σ = 2427538692. Its totient is φ = 2427538690.

The previous prime is 2427538577. The next prime is 2427538697. The reversal of 2427538691 is 1968357242.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2427538691 is a prime.

It is not a weakly prime, because it can be changed into another prime (2427538697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1213769345 + 1213769346.

It is an arithmetic number, because the mean of its divisors is an integer number (1213769346).

Almost surely, 2^2427538691 is an apocalyptic number.

2427538691 is a deficient number, since it is larger than the sum of its proper divisors (1).

2427538691 is an equidigital number, since it uses as much as digits as its factorization.

2427538691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 725760, while the sum is 47.

The square root of 2427538691 is about 49270.0587679779. The cubic root of 2427538691 is about 1343.9673561477.

The spelling of 2427538691 in words is "two billion, four hundred twenty-seven million, five hundred thirty-eight thousand, six hundred ninety-one".