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64839093846 = 2310806515641
BaseRepresentation
bin111100011000101101…
…100000111001010110
320012100202012020120020
4330120231200321112
52030242302000341
645441530450010
74453526130012
oct743055407126
9205322166506
1064839093846
1125552a8397a
1210696593906
13616416ba27
1431d142b542
151a474c3566
hexf18b60e56

64839093846 has 8 divisors (see below), whose sum is σ = 129678187704. Its totient is φ = 21613031280.

The previous prime is 64839093799. The next prime is 64839093857.

64839093846 is nontrivially palindromic in base 10.

64839093846 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

64839093846 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 64839093846.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5403257815 + ... + 5403257826.

It is an arithmetic number, because the mean of its divisors is an integer number (16209773463).

Almost surely, 264839093846 is an apocalyptic number.

64839093846 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64839093846 is a wasteful number, since it uses less digits than its factorization.

64839093846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10806515646.

The product of its (nonzero) digits is 26873856, while the sum is 60.

The spelling of 64839093846 in words is "sixty-four billion, eight hundred thirty-nine million, ninety-three thousand, eight hundred forty-six".

Divisors: 1 2 3 6 10806515641 21613031282 32419546923 64839093846