6501271045 has 8 divisors (see below), whose sum is σ = 7822785024. Its totient is φ = 5186843664.

The previous prime is 6501271043. The next prime is 6501271079. The reversal of 6501271045 is 5401721056.

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 6501271045 - 2¹ = 6501271043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6501270998 and 6501271016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6501271043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1769629 + ... + 1773298.

It is an arithmetic number, because the mean of its divisors is an integer number (977848128).

Almost surely, 2^6501271045 is an apocalyptic number.

It is an amenable number.

6501271045 is a deficient number, since it is larger than the sum of its proper divisors (1321513979).

6501271045 is a wasteful number, since it uses less digits than its factorization.

6501271045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3543299.

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 6501271045 is about 80630.4597841287. The cubic root of 6501271045 is about 1866.3772163687.

The spelling of 6501271045 in words is "six billion, five hundred one million, two hundred seventy-one thousand, forty-five".