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6541072885613 = 71913488467843
BaseRepresentation
bin101111100101111011001…
…0100110110011101101101
3212011022122121122001000102
41133023312110312131231
51324132104124314423
621524532152440445
71243401612104660
oct137136624663555
925138577561012
106541072885613
1120a2065133812
128978540a9125
13385a88909386
14188837ca16d7
15b523587ec28
hex5f2f653676d

6541072885613 has 8 divisors (see below), whose sum is σ = 7479419627328. Its totient is φ = 5603703083424.

The previous prime is 6541072885609. The next prime is 6541072885637. The reversal of 6541072885613 is 3165882701456.

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 6541072885613 - 22 = 6541072885609 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 (6541072885213) 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, 244220531 + ... + 244247312.

It is an arithmetic number, because the mean of its divisors is an integer number (934927453416).

Almost surely, 26541072885613 is an apocalyptic number.

It is an amenable number.

6541072885613 is a deficient number, since it is larger than the sum of its proper divisors (938346741715).

6541072885613 is a wasteful number, since it uses less digits than its factorization.

6541072885613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488469763.

The product of its (nonzero) digits is 9676800, while the sum is 56.

The spelling of 6541072885613 in words is "six trillion, five hundred forty-one billion, seventy-two million, eight hundred eighty-five thousand, six hundred thirteen".

Divisors: 1 7 1913 13391 488467843 3419274901 934438983659 6541072885613