7557496993 has 4 divisors (see below), whose sum is σ = 7563952048. Its totient is φ = 7551041940.

The previous prime is 7557496957. The next prime is 7557496997. The reversal of 7557496993 is 3996947557.

7557496993 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3996947557 = 191 ⋅20926427.

It is a cyclic number.

It is not a de Polignac number, because 7557496993 - 2⁹ = 7557496481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7557496997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3225771 + ... + 3228112.

It is an arithmetic number, because the mean of its divisors is an integer number (1890988012).

Almost surely, 2^7557496993 is an apocalyptic number.

It is an amenable number.

7557496993 is a deficient number, since it is larger than the sum of its proper divisors (6455055).

7557496993 is a wasteful number, since it uses less digits than its factorization.

7557496993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6455054.

The product of its digits is 64297800, while the sum is 64.

The square root of 7557496993 is about 86933.8656278438. The cubic root of 7557496993 is about 1962.4231616257.

The spelling of 7557496993 in words is "seven billion, five hundred fifty-seven million, four hundred ninety-six thousand, nine hundred ninety-three".