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8603874968861 is a prime number
BaseRepresentation
bin111110100110011111011…
…1010010100010100011101
31010110112002211200021022202
41331030332322110110131
52111431213443000421
630144322100221245
71545416020363454
oct175147672242435
933415084607282
108603874968861
112817979132237
12b6b5a439a825
134a545a2a7143
1421a60340bb9b
15edc170ac10b
hex7d33ee9451d

8603874968861 has 2 divisors, whose sum is σ = 8603874968862. Its totient is φ = 8603874968860.

The previous prime is 8603874968833. The next prime is 8603874968881. The reversal of 8603874968861 is 1688694783068.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6588025891225 + 2015849077636 = 2566715^2 + 1419806^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-8603874968861 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8603874968881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4301937484430 + 4301937484431.

It is an arithmetic number, because the mean of its divisors is an integer number (4301937484431).

Almost surely, 28603874968861 is an apocalyptic number.

It is an amenable number.

8603874968861 is a deficient number, since it is larger than the sum of its proper divisors (1).

8603874968861 is an equidigital number, since it uses as much as digits as its factorization.

8603874968861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 668860416, while the sum is 74.

The spelling of 8603874968861 in words is "eight trillion, six hundred three billion, eight hundred seventy-four million, nine hundred sixty-eight thousand, eight hundred sixty-one".