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489011863487 = 7233782090291
BaseRepresentation
bin1110001110110110110…
…00001101111110111111
31201202020002002112122112
413013123120031332333
531002444014112422
61012352101204235
750221112154050
oct7073330157677
91652202075575
10489011863487
111794304a2944
127a93510067b
1337162818254
141994db60727
15cac1138ee2
hex71db60dfbf

489011863487 has 16 divisors (see below), whose sum is σ = 598930770432. Its totient is φ = 390093058080.

The previous prime is 489011863477. The next prime is 489011863489. The reversal of 489011863487 is 784368110984.

It is a cyclic number.

It is not a de Polignac number, because 489011863487 - 218 = 489011601343 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 (489011863489) 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, 41039189 + ... + 41051102.

It is an arithmetic number, because the mean of its divisors is an integer number (37433173152).

Almost surely, 2489011863487 is an apocalyptic number.

489011863487 is a deficient number, since it is larger than the sum of its proper divisors (109918906945).

489011863487 is a wasteful number, since it uses less digits than its factorization.

489011863487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82090358.

The product of its (nonzero) digits is 9289728, while the sum is 59.

The spelling of 489011863487 in words is "four hundred eighty-nine billion, eleven million, eight hundred sixty-three thousand, four hundred eighty-seven".

Divisors: 1 7 23 37 161 259 851 5957 82090291 574632037 1888076693 3037340767 13216536851 21261385369 69858837641 489011863487