2662027438391 has 2 divisors, whose sum is σ = 2662027438392. Its totient is φ = 2662027438390.

The previous prime is 2662027438309. The next prime is 2662027438397. The reversal of 2662027438391 is 1938347202662.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2662027438391 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2662027438397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1331013719195 + 1331013719196.

It is an arithmetic number, because the mean of its divisors is an integer number (1331013719196).

Almost surely, 2^{2662027438391} is an apocalyptic number.

2662027438391 is a deficient number, since it is larger than the sum of its proper divisors (1).

2662027438391 is an equidigital number, since it uses as much as digits as its factorization.

2662027438391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5225472, while the sum is 53.

The spelling of 2662027438391 in words is "two trillion, six hundred sixty-two billion, twenty-seven million, four hundred thirty-eight thousand, three hundred ninety-one".