6742128461 has 8 divisors (see below), whose sum is σ = 6872653920. Its totient is φ = 6612482448.

The previous prime is 6742128443. The next prime is 6742128469. The reversal of 6742128461 is 1648212476.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6742128461 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6742128469) 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 7 ways as a sum of consecutive naturals, for example, 204371 + ... + 235056.

It is an arithmetic number, because the mean of its divisors is an integer number (859081740).

Almost surely, 2^6742128461 is an apocalyptic number.

It is an amenable number.

6742128461 is a deficient number, since it is larger than the sum of its proper divisors (130525459).

6742128461 is a wasteful number, since it uses less digits than its factorization.

6742128461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439723.

The product of its digits is 129024, while the sum is 41.

The square root of 6742128461 is about 82110.4649907672. The cubic root of 6742128461 is about 1889.1466581536.

The spelling of 6742128461 in words is "six billion, seven hundred forty-two million, one hundred twenty-eight thousand, four hundred sixty-one".