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80937543456 = 253271117273173
BaseRepresentation
bin100101101100001000…
…0001110011100100000
321201220200021012211200
41023120100032130200
52311230002342311
6101103204241200
75563464524310
oct1133020163440
9251820235750
1080937543456
1131364151390
12138299a0200
13782b444b63
143cbb4a9440
15218a964556
hex12d840e720

80937543456 has 864 divisors, whose sum is σ = 310795325568. Its totient is φ = 19402260480.

The previous prime is 80937543431. The next prime is 80937543461. The reversal of 80937543456 is 65434573908.

80937543456 is a `hidden beast` number, since 8 + 0 + 93 + 7 + 543 + 4 + 5 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 467846986 + ... + 467847158.

It is an arithmetic number, because the mean of its divisors is an integer number (359716812).

Almost surely, 280937543456 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 80937543456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155397662784).

80937543456 is an abundant number, since it is smaller than the sum of its proper divisors (229857782112).

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

80937543456 is a wasteful number, since it uses less digits than its factorization.

80937543456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314 (or 286 counting only the distinct ones).

The product of its (nonzero) digits is 10886400, while the sum is 54.

The spelling of 80937543456 in words is "eighty billion, nine hundred thirty-seven million, five hundred forty-three thousand, four hundred fifty-six".