6546744528157 has 8 divisors (see below), whose sum is σ = 6548624293112. Its totient is φ = 6544864972800.

The previous prime is 6546744528133. The next prime is 6546744528197. The reversal of 6546744528157 is 7518254476456.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 357501151396 + 6189243376761 = 597914^2 + 2487819^2 .

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-6546744528157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6546744528197) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78704893 + ... + 78788029.

It is an arithmetic number, because the mean of its divisors is an integer number (818578036639).

Almost surely, 2^{6546744528157} is an apocalyptic number.

It is an amenable number.

6546744528157 is a deficient number, since it is larger than the sum of its proper divisors (1879764955).

6546744528157 is a wasteful number, since it uses less digits than its factorization.

6546744528157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104799.

The product of its digits is 225792000, while the sum is 64.

The spelling of 6546744528157 in words is "six trillion, five hundred forty-six billion, seven hundred forty-four million, five hundred twenty-eight thousand, one hundred fifty-seven".