42889199680 has 112 divisors (see below), whose sum is σ = 106840782000. Its totient is φ = 16377675776.

The previous prime is 42889199657. The next prime is 42889199711. The reversal of 42889199680 is 8699198824.

It can be written as a sum of positive squares in 8 ways, for example, as 275029056 + 42614170624 = 16584^2 + 206432^2 .

It is a Harshad number since it is a multiple of its sum of digits (64).

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, 799956 + ... + 851884.

Almost surely, 2^42889199680 is an apocalyptic number.

42889199680 is a gapful number since it is divisible by the number (40) 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 42889199680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53420391000).

42889199680 is an abundant number, since it is smaller than the sum of its proper divisors (63951582320).

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

42889199680 is a wasteful number, since it uses less digits than its factorization.

42889199680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52064 (or 52054 counting only the distinct ones).

The product of its (nonzero) digits is 17915904, while the sum is 64.

The spelling of 42889199680 in words is "forty-two billion, eight hundred eighty-nine million, one hundred ninety-nine thousand, six hundred eighty".