7450566138791 has 2 divisors, whose sum is σ = 7450566138792. Its totient is φ = 7450566138790.

The previous prime is 7450566138781. The next prime is 7450566138863. The reversal of 7450566138791 is 1978316650547.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7450566138791 - 2³⁸ = 7175688231847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7450566138781) 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, 3725283069395 + 3725283069396.

It is an arithmetic number, because the mean of its divisors is an integer number (3725283069396).

Almost surely, 2^{7450566138791} is an apocalyptic number.

7450566138791 is a deficient number, since it is larger than the sum of its proper divisors (1).

7450566138791 is an equidigital number, since it uses as much as digits as its factorization.

7450566138791 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38102400, while the sum is 62.

The spelling of 7450566138791 in words is "seven trillion, four hundred fifty billion, five hundred sixty-six million, one hundred thirty-eight thousand, seven hundred ninety-one".