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85371280127 = 721939027311
BaseRepresentation
bin100111110000010000…
…1100101101011111111
322011100200010101010222
41033200201211223333
52344320021431002
6103115150451555
76111402623300
oct1174041455377
9264320111128
1085371280127
1133229953371
1214666803bbb
138086b8a893
1441bc2867a7
152349d141a2
hex13e0865aff

85371280127 has 12 divisors (see below), whose sum is σ = 99824016096. Its totient is φ = 72796227840.

The previous prime is 85371280109. The next prime is 85371280133. The reversal of 85371280127 is 72108217358.

It is not a de Polignac number, because 85371280127 - 224 = 85354502911 is a prime.

It is a super-2 number, since 2×853712801272 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85371280177) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4504199 + ... + 4523112.

It is an arithmetic number, because the mean of its divisors is an integer number (8318668008).

Almost surely, 285371280127 is an apocalyptic number.

85371280127 is a deficient number, since it is larger than the sum of its proper divisors (14452735969).

85371280127 is a wasteful number, since it uses less digits than its factorization.

85371280127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9027518 (or 9027511 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 44.

The spelling of 85371280127 in words is "eighty-five billion, three hundred seventy-one million, two hundred eighty thousand, one hundred twenty-seven".

Divisors: 1 7 49 193 1351 9457 9027311 63191177 442338239 1742271023 12195897161 85371280127