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63870020650895 = 520879996117821
BaseRepresentation
bin11101000010110111001011…
…11001001000011110001111
322101010220200120000010222112
432201123211321020132033
531332421300241312040
6343501252111534235
716311312436624064
oct1641334571103617
9271126616003875
1063870020650895
111939513a6299a8
1271b653082a37b
132983bbcb52b64
1411ab47b224c6b
1575b614928365
hex3a16e5e4878f

63870020650895 has 8 divisors (see below), whose sum is σ = 76644074016000. Its totient is φ = 51095983697440.

The previous prime is 63870020650867. The next prime is 63870020650903. The reversal of 63870020650895 is 59805602007836.

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

It is a de Polignac number, because none of the positive numbers 2k-63870020650895 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7381085 + ... + 13498905.

It is an arithmetic number, because the mean of its divisors is an integer number (9580509252000).

Almost surely, 263870020650895 is an apocalyptic number.

63870020650895 is a deficient number, since it is larger than the sum of its proper divisors (12774053365105).

63870020650895 is a wasteful number, since it uses less digits than its factorization.

63870020650895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8205825.

The product of its (nonzero) digits is 21772800, while the sum is 59.

The spelling of 63870020650895 in words is "sixty-three trillion, eight hundred seventy billion, twenty million, six hundred fifty thousand, eight hundred ninety-five".

Divisors: 1 5 2087999 6117821 10439995 30589105 12774004130179 63870020650895