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64913291167 is a prime number
BaseRepresentation
bin111100011101001000…
…100011011110011111
320012112220210212011011
4330131020203132133
52030420300304132
645453141040051
74455416604514
oct743510433637
9205486725134
1064913291167
112559095147a
12106b73b6027
136176649b7a
1431db22330b
151a4dc7cb47
hexf1d22379f

64913291167 has 2 divisors, whose sum is σ = 64913291168. Its totient is φ = 64913291166.

The previous prime is 64913291143. The next prime is 64913291239. The reversal of 64913291167 is 76119231946.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64913291167 - 219 = 64912766879 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64913291167.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64913291137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32456645583 + 32456645584.

It is an arithmetic number, because the mean of its divisors is an integer number (32456645584).

Almost surely, 264913291167 is an apocalyptic number.

64913291167 is a deficient number, since it is larger than the sum of its proper divisors (1).

64913291167 is an equidigital number, since it uses as much as digits as its factorization.

64913291167 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 489888, while the sum is 49.

The spelling of 64913291167 in words is "sixty-four billion, nine hundred thirteen million, two hundred ninety-one thousand, one hundred sixty-seven".