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68092729855 = 529994541029
BaseRepresentation
bin111111011010101001…
…001001100111111111
320111202111111002002121
4333122221021213333
52103423214323410
651140435303411
74630254440203
oct773251114777
9214674432077
1068092729855
1126972630857
121124414ab67
136562269937
14341d5b8b03
151b87e689da
hexfdaa499ff

68092729855 has 8 divisors (see below), whose sum is σ = 81738540000. Its totient is φ = 54456007776.

The previous prime is 68092729807. The next prime is 68092729877. The reversal of 68092729855 is 55892729086.

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 68092729855 - 221 = 68090632703 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68092729793 and 68092729802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2255520 + ... + 2285509.

It is an arithmetic number, because the mean of its divisors is an integer number (10217317500).

Almost surely, 268092729855 is an apocalyptic number.

68092729855 is a deficient number, since it is larger than the sum of its proper divisors (13645810145).

68092729855 is a wasteful number, since it uses less digits than its factorization.

68092729855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4544033.

The product of its (nonzero) digits is 21772800, while the sum is 61.

The spelling of 68092729855 in words is "sixty-eight billion, ninety-two million, seven hundred twenty-nine thousand, eight hundred fifty-five".

Divisors: 1 5 2999 14995 4541029 22705145 13618545971 68092729855