6746148257 has 4 divisors (see below), whose sum is σ = 6754487940. Its totient is φ = 6737808576.

The previous prime is 6746148217. The next prime is 6746148263. The reversal of 6746148257 is 7528416476.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3637416721 + 3108731536 = 60311^2 + 55756^2 .

It is a cyclic number.

It is not a de Polignac number, because 6746148257 - 2²⁰ = 6745099681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6746148217) 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, 4168628 + ... + 4170245.

It is an arithmetic number, because the mean of its divisors is an integer number (1688621985).

Almost surely, 2^6746148257 is an apocalyptic number.

It is an amenable number.

6746148257 is a deficient number, since it is larger than the sum of its proper divisors (8339683).

6746148257 is an equidigital number, since it uses as much as digits as its factorization.

6746148257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8339682.

The product of its digits is 2257920, while the sum is 50.

The square root of 6746148257 is about 82134.9393193907. The cubic root of 6746148257 is about 1889.5220329576.

The spelling of 6746148257 in words is "six billion, seven hundred forty-six million, one hundred forty-eight thousand, two hundred fifty-seven".