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12878880000 = 2835473833
BaseRepresentation
bin10111111111010010…
…00001110100000000
31020020112212220001120
423333221001310000
5202333443130000
65525543032240
7634102450050
oct137751016400
936215786046
1012878880000
115509879188
1225b513b680
1312a327506c
148a263b560
155059c96a0
hex2ffa41d00

12878880000 has 360 divisors, whose sum is σ = 48963676608. Its totient is φ = 2942976000.

The previous prime is 12878879987. The next prime is 12878880037. The reversal of 12878880000 is 8887821.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3358084 + ... + 3361916.

Almost surely, 212878880000 is an apocalyptic number.

12878880000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12878880000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24481838304).

12878880000 is an abundant number, since it is smaller than the sum of its proper divisors (36084796608).

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

12878880000 is an frugal number, since it uses more digits than its factorization.

12878880000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3879 (or 3850 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 42.

The spelling of 12878880000 in words is "twelve billion, eight hundred seventy-eight million, eight hundred eighty thousand".