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3871716342385 = 547130312644197
BaseRepresentation
bin111000010101110100010…
…001101111101001110001
3111201010120120100200102211
4320111310101233221301
51001413233340424020
612122350354012121
7546502511624323
oct70256421575161
914633516320384
103871716342385
111262a92a37a21
12526445b77041
132211416a2b18
14d556bbb1613
156aaa3b7785a
hex3857446fa71

3871716342385 has 16 divisors (see below), whose sum is σ = 4748553847296. Its totient is φ = 3029144747328.

The previous prime is 3871716342359. The next prime is 3871716342401. The reversal of 3871716342385 is 5832436171783.

It is a cyclic number.

It is not a de Polignac number, because 3871716342385 - 27 = 3871716342257 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6015894 + ... + 6628303.

It is an arithmetic number, because the mean of its divisors is an integer number (296784615456).

Almost surely, 23871716342385 is an apocalyptic number.

It is an amenable number.

3871716342385 is a deficient number, since it is larger than the sum of its proper divisors (876837504911).

3871716342385 is a wasteful number, since it uses less digits than its factorization.

3871716342385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12645552.

The product of its digits is 20321280, while the sum is 58.

The spelling of 3871716342385 in words is "three trillion, eight hundred seventy-one billion, seven hundred sixteen million, three hundred forty-two thousand, three hundred eighty-five".

Divisors: 1 5 47 235 1303 6515 61241 306205 12644197 63220985 594277259 2971386295 16475388691 82376943455 774343268477 3871716342385