Search a number
-
+
64349870119 is a prime number
BaseRepresentation
bin111011111011100011…
…010001100000100111
320011002122122002202221
4323323203101200213
52023242031320434
645321213013211
74435435604533
oct737343214047
9204078562687
1064349870119
1125321907947
121057a784207
1360b69ba932
14318647cbc3
151a195882b4
hexefb8d1827

64349870119 has 2 divisors, whose sum is σ = 64349870120. Its totient is φ = 64349870118.

The previous prime is 64349870089. The next prime is 64349870191. The reversal of 64349870119 is 91107894346.

Together with next prime (64349870191) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64349870119 - 25 = 64349870087 is a prime.

It is a super-2 number, since 2×643498701192 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64343870119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32174935059 + 32174935060.

It is an arithmetic number, because the mean of its divisors is an integer number (32174935060).

Almost surely, 264349870119 is an apocalyptic number.

64349870119 is a deficient number, since it is larger than the sum of its proper divisors (1).

64349870119 is an equidigital number, since it uses as much as digits as its factorization.

64349870119 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1306368, while the sum is 52.

The spelling of 64349870119 in words is "sixty-four billion, three hundred forty-nine million, eight hundred seventy thousand, one hundred nineteen".