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19070869867 = 7191009142111
BaseRepresentation
bin10001110000101101…
…100110000101101011
31211020002012120022121
4101300231212011223
5303024120313432
612432214532111
71243410501460
oct216055460553
954202176277
1019070869867
1180a7010885
123842967037
131a4c0521aa
14cccb45667
157693d8197
hex470b6616b

19070869867 has 16 divisors (see below), whose sum is σ = 22965299200. Its totient is φ = 15470663040.

The previous prime is 19070869817. The next prime is 19070869901. The reversal of 19070869867 is 76896807091.

It is not a de Polignac number, because 19070869867 - 219 = 19070345579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19070869817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63142 + ... + 205252.

It is an arithmetic number, because the mean of its divisors is an integer number (1435331200).

Almost surely, 219070869867 is an apocalyptic number.

19070869867 is a deficient number, since it is larger than the sum of its proper divisors (3894429333).

19070869867 is a wasteful number, since it uses less digits than its factorization.

19070869867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143146.

The product of its (nonzero) digits is 9144576, while the sum is 61.

The spelling of 19070869867 in words is "nineteen billion, seventy million, eight hundred sixty-nine thousand, eight hundred sixty-seven".

Divisors: 1 7 19 133 1009 7063 19171 134197 142111 994777 2700109 18900763 143389999 1003729993 2724409981 19070869867