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50867680864 = 25721113892549
BaseRepresentation
bin101111010111111100…
…110011011001100000
311212022001111221000011
4233113330303121200
51313134111241424
635211314534304
73450356103400
oct572774633140
9155261457004
1050867680864
111a633530580
129a37597394
134a4875b960
142667a76800
1514cab3a694
hexbd7f33660

50867680864 has 288 divisors, whose sum is σ = 138454596000. Its totient is φ = 18081423360.

The previous prime is 50867680769. The next prime is 50867680867. The reversal of 50867680864 is 46808676805.

It is a junction number, because it is equal to n+sod(n) for n = 50867680799 and 50867680808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50867680867) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19954662 + ... + 19957210.

It is an arithmetic number, because the mean of its divisors is an integer number (480745125).

Almost surely, 250867680864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50867680864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69227298000).

50867680864 is an abundant number, since it is smaller than the sum of its proper divisors (87586915136).

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

50867680864 is a wasteful number, since it uses less digits than its factorization.

50867680864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2686 (or 2671 counting only the distinct ones).

The product of its (nonzero) digits is 15482880, while the sum is 58.

The spelling of 50867680864 in words is "fifty billion, eight hundred sixty-seven million, six hundred eighty thousand, eight hundred sixty-four".