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86628840411389 = 19102731636127127
BaseRepresentation
bin10011101100100111011001…
…010000101001000011111101
3102100201122011211120022212012
4103230213121100221003331
542323311331121131024
6504124423452021005
724150504265000553
oct2354473120510375
9370648154508765
1086628840411389
112566a0a3004021
1298712bb461765
1339450abbcbca3
141756c03061bd3
15a0363566150e
hex4ec9d94290fd

86628840411389 has 16 divisors (see below), whose sum is σ = 91206065681280. Its totient is φ = 82053398338560.

The previous prime is 86628840411371. The next prime is 86628840411409. The reversal of 86628840411389 is 98311404882668.

It is a cyclic number.

It is not a de Polignac number, because 86628840411389 - 244 = 69036654366973 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 (86628840411319) 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, 3193440944 + ... + 3193468070.

It is an arithmetic number, because the mean of its divisors is an integer number (5700379105080).

Almost surely, 286628840411389 is an apocalyptic number.

It is an amenable number.

86628840411389 is a deficient number, since it is larger than the sum of its proper divisors (4577225269891).

86628840411389 is a wasteful number, since it uses less digits than its factorization.

86628840411389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53780.

The product of its (nonzero) digits is 127401984, while the sum is 68.

The spelling of 86628840411389 in words is "eighty-six trillion, six hundred twenty-eight billion, eight hundred forty million, four hundred eleven thousand, three hundred eighty-nine".

Divisors: 1 19 10273 16361 27127 195187 310859 515413 168076553 278675671 443824847 3193454507 5294837749 8432672093 4559412653231 86628840411389