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64210882137 = 321403627379
BaseRepresentation
bin111011110011010001…
…000100111001011001
320010201222002210002220
4323303101010321121
52023000441212022
645255330014253
74432130331003
oct736321047131
9203658083086
1064210882137
1125260407146
1210540117389
136093c7611c
143171c1d373
151a0c28185c
hexef3444e59

64210882137 has 4 divisors (see below), whose sum is σ = 85614509520. Its totient is φ = 42807254756.

The previous prime is 64210882133. The next prime is 64210882163. The reversal of 64210882137 is 73128801246.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 64210882137 - 22 = 64210882133 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64210882133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10701813687 + ... + 10701813692.

It is an arithmetic number, because the mean of its divisors is an integer number (21403627380).

Almost surely, 264210882137 is an apocalyptic number.

It is an amenable number.

64210882137 is a deficient number, since it is larger than the sum of its proper divisors (21403627383).

64210882137 is a wasteful number, since it uses less digits than its factorization.

64210882137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21403627382.

The product of its (nonzero) digits is 129024, while the sum is 42.

The spelling of 64210882137 in words is "sixty-four billion, two hundred ten million, eight hundred eighty-two thousand, one hundred thirty-seven".

Divisors: 1 3 21403627379 64210882137