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86648444320805 = 5199508117139119
BaseRepresentation
bin10011101100111001101001…
…101111100111110000100101
3102100210111210001210002222022
4103230321221233213300211
542324122003221231210
6504141425031512525
724152100140324453
oct2354715157476045
9370714701702868
1086648444320805
1125677442998354
129875070828745
133946bb45038a3
141757b428bd9d3
15a03dd173c155
hex4ece69be7c25

86648444320805 has 16 divisors (see below), whose sum is σ = 104521209408000. Its totient is φ = 68956841796480.

The previous prime is 86648444320771. The next prime is 86648444320807. The reversal of 86648444320805 is 50802344484668.

It is not a de Polignac number, because 86648444320805 - 234 = 86631264451621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86648444320807) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3513965 + ... + 13625154.

It is an arithmetic number, because the mean of its divisors is an integer number (6532575588000).

Almost surely, 286648444320805 is an apocalyptic number.

It is an amenable number.

86648444320805 is a deficient number, since it is larger than the sum of its proper divisors (17872765087195).

86648444320805 is a wasteful number, since it uses less digits than its factorization.

86648444320805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17144404.

The product of its (nonzero) digits is 141557760, while the sum is 62.

The spelling of 86648444320805 in words is "eighty-six trillion, six hundred forty-eight billion, four hundred forty-four million, three hundred twenty thousand, eight hundred five".

Divisors: 1 5 199 995 5081 25405 1011119 5055595 17139119 85695595 3410684681 17053423405 87083863639 435419318195 17329688864161 86648444320805