6540901712 has 10 divisors (see below), whose sum is σ = 12672997098. Its totient is φ = 3270450848.

The previous prime is 6540901709. The next prime is 6540901723. The reversal of 6540901712 is 2171090456.

It can be written as a sum of positive squares in only one way, i.e., 4035298576 + 2505603136 = 63524^2 + 50056^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204403163 + ... + 204403194.

Almost surely, 2^6540901712 is an apocalyptic number.

It is an amenable number.

6540901712 is a deficient number, since it is larger than the sum of its proper divisors (6132095386).

6540901712 is a wasteful number, since it uses less digits than its factorization.

6540901712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408806365 (or 408806359 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 6540901712 is about 80875.8413372003. The cubic root of 6540901712 is about 1870.1619114957.

The spelling of 6540901712 in words is "six billion, five hundred forty million, nine hundred one thousand, seven hundred twelve".