7121641326599 has 2 divisors, whose sum is σ = 7121641326600. Its totient is φ = 7121641326598.

The previous prime is 7121641326587. The next prime is 7121641326641. The reversal of 7121641326599 is 9956231461217.

It is a weak prime.

It is an emirp because it is prime and its reverse (9956231461217) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7121641326599 - 2⁸ = 7121641326343 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 (7121641326559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3560820663299 + 3560820663300.

It is an arithmetic number, because the mean of its divisors is an integer number (3560820663300).

Almost surely, 2^{7121641326599} is an apocalyptic number.

7121641326599 is a deficient number, since it is larger than the sum of its proper divisors (1).

7121641326599 is an equidigital number, since it uses as much as digits as its factorization.

7121641326599 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4898880, while the sum is 56.

The spelling of 7121641326599 in words is "seven trillion, one hundred twenty-one billion, six hundred forty-one million, three hundred twenty-six thousand, five hundred ninety-nine".