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2071681943 is a prime number
BaseRepresentation
bin111101101111011…
…0101101110010111
312100101020100100212
41323132311232113
513220322310233
6541323200035
7102224002022
oct17336655627
95311210325
102071681943
11973457341
1249997601b
13270284606
141591d81b9
15c1d21a48
hex7b7b5b97

2071681943 has 2 divisors, whose sum is σ = 2071681944. Its totient is φ = 2071681942.

The previous prime is 2071681877. The next prime is 2071681957. The reversal of 2071681943 is 3491861702.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2071681943 - 218 = 2071419799 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2071681943.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2071681043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1035840971 + 1035840972.

It is an arithmetic number, because the mean of its divisors is an integer number (1035840972).

Almost surely, 22071681943 is an apocalyptic number.

2071681943 is a deficient number, since it is larger than the sum of its proper divisors (1).

2071681943 is an equidigital number, since it uses as much as digits as its factorization.

2071681943 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 2071681943 is about 45515.7329173111. The cubic root of 2071681943 is about 1274.7969827722.

The spelling of 2071681943 in words is "two billion, seventy-one million, six hundred eighty-one thousand, nine hundred forty-three".