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BaseRepresentation
bin100100101111010011…
…1100001011010000000
321112122110022020100210
41021132213201122000
52243040042030310
6100124504514120
75462064663525
oct1113647413200
9245573266323
1078896830080
1130507227202
121335a47b940
137594714353
143b6645314c
1520bb70d820
hex125e9e1680

78896830080 has 128 divisors (see below), whose sum is σ = 262417864320. Its totient is φ = 20124397568.

The previous prime is 78896830049. The next prime is 78896830091. The reversal of 78896830080 is 8003869887.

It is a tau number, because it is divible by the number of its divisors (128).

It is a self number, because there is not a number n which added to its sum of digits gives 78896830080.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 849147 + ... + 937466.

It is an arithmetic number, because the mean of its divisors is an integer number (2050139565).

Almost surely, 278896830080 is an apocalyptic number.

It is an amenable number.

78896830080 is an abundant number, since it is smaller than the sum of its proper divisors (183521034240).

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

78896830080 is a wasteful number, since it uses less digits than its factorization.

78896830080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1786658 (or 1786646 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 57.

The spelling of 78896830080 in words is "seventy-eight billion, eight hundred ninety-six million, eight hundred thirty thousand, eighty".