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64124630677 is a prime number
BaseRepresentation
bin111011101110001000…
…000011011010010101
320010111221210202100101
4323232020003122111
52022311401140202
645243005214101
74430032240012
oct735610033225
9203457722311
1064124630677
1125216756148
1210517261331
13607c137463
1431645aa709
151a048e5887
hexeee203695

64124630677 has 2 divisors, whose sum is σ = 64124630678. Its totient is φ = 64124630676.

The previous prime is 64124630657. The next prime is 64124630693. The reversal of 64124630677 is 77603642146.

64124630677 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51010029316 + 13114601361 = 225854^2 + 114519^2 .

It is a cyclic number.

It is not a de Polignac number, because 64124630677 - 235 = 29764892309 is a prime.

It is a super-2 number, since 2×641246306772 (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 (64124630657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32062315338 + 32062315339.

It is an arithmetic number, because the mean of its divisors is an integer number (32062315339).

Almost surely, 264124630677 is an apocalyptic number.

It is an amenable number.

64124630677 is a deficient number, since it is larger than the sum of its proper divisors (1).

64124630677 is an equidigital number, since it uses as much as digits as its factorization.

64124630677 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1016064, while the sum is 46.

The spelling of 64124630677 in words is "sixty-four billion, one hundred twenty-four million, six hundred thirty thousand, six hundred seventy-seven".