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64122512353 is a prime number
BaseRepresentation
bin111011101101111111…
…111110001111100001
320010111210211010112221
4323231333332033201
52022310330343403
645242451551041
74430005235104
oct735577761741
9203453733487
1064122512353
1125215539669
12105165bb481
13607b875203
1431641b873b
151a04627dbd
hexeedffe3e1

64122512353 has 2 divisors, whose sum is σ = 64122512354. Its totient is φ = 64122512352.

The previous prime is 64122512351. The next prime is 64122512411. The reversal of 64122512353 is 35321522146.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63547855569 + 574656784 = 252087^2 + 23972^2 .

It is a cyclic number.

It is not a de Polignac number, because 64122512353 - 21 = 64122512351 is a prime.

It is a super-2 number, since 2×641225123532 (a number of 22 digits) contains 22 as substring.

Together with 64122512351, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (64122512351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32061256176 + 32061256177.

It is an arithmetic number, because the mean of its divisors is an integer number (32061256177).

Almost surely, 264122512353 is an apocalyptic number.

It is an amenable number.

64122512353 is a deficient number, since it is larger than the sum of its proper divisors (1).

64122512353 is an equidigital number, since it uses as much as digits as its factorization.

64122512353 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43200, while the sum is 34.

The spelling of 64122512353 in words is "sixty-four billion, one hundred twenty-two million, five hundred twelve thousand, three hundred fifty-three".