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64825484279 is a prime number
BaseRepresentation
bin111100010111111001…
…100110001111110111
320012022210120210202012
4330113321212033313
52030230310444104
645440323034435
74453302344663
oct742771461767
9205283523665
1064825484279
11255463288a6
1210691b0ba1b
1361613b522a
1431cd6c78a3
151a461d5d6e
hexf17e663f7

64825484279 has 2 divisors, whose sum is σ = 64825484280. Its totient is φ = 64825484278.

The previous prime is 64825484201. The next prime is 64825484303. The reversal of 64825484279 is 97248452846.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64825484279 - 220 = 64824435703 is a prime.

It is a super-2 number, since 2×648254842792 (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 (64825484879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32412742139 + 32412742140.

It is an arithmetic number, because the mean of its divisors is an integer number (32412742140).

Almost surely, 264825484279 is an apocalyptic number.

64825484279 is a deficient number, since it is larger than the sum of its proper divisors (1).

64825484279 is an equidigital number, since it uses as much as digits as its factorization.

64825484279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30965760, while the sum is 59.

The spelling of 64825484279 in words is "sixty-four billion, eight hundred twenty-five million, four hundred eighty-four thousand, two hundred seventy-nine".