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13854669577 = 71979238511
BaseRepresentation
bin11001110011100110…
…10111101100001001
31022202120000010201021
430321303113230021
5211333243411302
610210441352441
71000221514450
oct147163275411
938676003637
1013854669577
11596a666351
122827a98721
1313ca486548
14956085b97
155614c7437
hex339cd7b09

13854669577 has 4 divisors (see below), whose sum is σ = 15833908096. Its totient is φ = 11875431060.

The previous prime is 13854669559. The next prime is 13854669581. The reversal of 13854669577 is 77596645831.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 77596645831 = 671158158893.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13854669577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13854669557) 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 3 ways as a sum of consecutive naturals, for example, 989619249 + ... + 989619262.

It is an arithmetic number, because the mean of its divisors is an integer number (3958477024).

Almost surely, 213854669577 is an apocalyptic number.

It is an amenable number.

13854669577 is a deficient number, since it is larger than the sum of its proper divisors (1979238519).

13854669577 is an equidigital number, since it uses as much as digits as its factorization.

13854669577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1979238518.

The product of its digits is 38102400, while the sum is 61.

The spelling of 13854669577 in words is "thirteen billion, eight hundred fifty-four million, six hundred sixty-nine thousand, five hundred seventy-seven".

Divisors: 1 7 1979238511 13854669577