7546666457 has 4 divisors (see below), whose sum is σ = 8232727056. Its totient is φ = 6860605860.

The previous prime is 7546666399. The next prime is 7546666481.

7546666457 is nontrivially palindromic in base 10.

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.

It is a cyclic number.

It is not a de Polignac number, because 7546666457 - 2¹⁴ = 7546650073 is a prime.

It is a super-2 number, since 2×7546666457² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7546666357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 343030283 + ... + 343030304.

It is an arithmetic number, because the mean of its divisors is an integer number (2058181764).

Almost surely, 2^7546666457 is an apocalyptic number.

It is an amenable number.

7546666457 is a deficient number, since it is larger than the sum of its proper divisors (686060599).

7546666457 is a wasteful number, since it uses less digits than its factorization.

7546666457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686060598.

The product of its digits is 25401600, while the sum is 56.

The square root of 7546666457 is about 86871.5514826344. The cubic root of 7546666457 is about 1961.4852736898.

The spelling of 7546666457 in words is "seven billion, five hundred forty-six million, six hundred sixty-six thousand, four hundred fifty-seven".