7542686656513 has 8 divisors (see below), whose sum is σ = 7614106233120. Its totient is φ = 7471284250080.

The previous prime is 7542686656481. The next prime is 7542686656523. The reversal of 7542686656513 is 3156566862457.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7542686656513 - 2⁵ = 7542686656481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7542686656523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3408948 + ... + 5167813.

It is an arithmetic number, because the mean of its divisors is an integer number (951763279140).

Almost surely, 2^{7542686656513} is an apocalyptic number.

It is an amenable number.

7542686656513 is a deficient number, since it is larger than the sum of its proper divisors (71419576607).

7542686656513 is a wasteful number, since it uses less digits than its factorization.

7542686656513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8585087.

The product of its digits is 217728000, while the sum is 64.

The spelling of 7542686656513 in words is "seven trillion, five hundred forty-two billion, six hundred eighty-six million, six hundred fifty-six thousand, five hundred thirteen".