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60868490879 = 78695498697
BaseRepresentation
bin111000101100000010…
…110111011001111111
312211010000210201021002
4320230002313121333
51444124313202004
643543531000515
74253243431040
oct705402673177
9184100721232
1060868490879
11238a5749119
12b96889913b
135980670a11
142d35d6a8c7
1518b3b0861e
hexe2c0b767f

60868490879 has 4 divisors (see below), whose sum is σ = 69563989584. Its totient is φ = 52172992176.

The previous prime is 60868490873. The next prime is 60868490909. The reversal of 60868490879 is 97809486806.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-60868490879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60868490873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4347749342 + ... + 4347749355.

It is an arithmetic number, because the mean of its divisors is an integer number (17390997396).

Almost surely, 260868490879 is an apocalyptic number.

60868490879 is a deficient number, since it is larger than the sum of its proper divisors (8695498705).

60868490879 is an equidigital number, since it uses as much as digits as its factorization.

60868490879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8695498704.

The product of its (nonzero) digits is 41803776, while the sum is 65.

The spelling of 60868490879 in words is "sixty billion, eight hundred sixty-eight million, four hundred ninety thousand, eight hundred seventy-nine".

Divisors: 1 7 8695498697 60868490879