7540555549799 has 2 divisors, whose sum is σ = 7540555549800. Its totient is φ = 7540555549798.

The previous prime is 7540555549789. The next prime is 7540555549819. The reversal of 7540555549799 is 9979455550457.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7540555549799 - 2²⁰ = 7540554501223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7540555549729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3770277774899 + 3770277774900.

It is an arithmetic number, because the mean of its divisors is an integer number (3770277774900).

Almost surely, 2^{7540555549799} is an apocalyptic number.

7540555549799 is a deficient number, since it is larger than the sum of its proper divisors (1).

7540555549799 is an equidigital number, since it uses as much as digits as its factorization.

7540555549799 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1786050000, while the sum is 74.

The spelling of 7540555549799 in words is "seven trillion, five hundred forty billion, five hundred fifty-five million, five hundred forty-nine thousand, seven hundred ninety-nine".