2078117800 has 96 divisors (see below), whose sum is σ = 5399654400. Its totient is φ = 737216000.

The previous prime is 2078117771. The next prime is 2078117801. The reversal of 2078117800 is 87118702.

It is not an unprimeable number, because it can be changed into a prime (2078117801) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78681 + ... + 101719.

It is an arithmetic number, because the mean of its divisors is an integer number (56246400).

Almost surely, 2^2078117800 is an apocalyptic number.

2078117800 is a gapful number since it is divisible by the number (20) 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 2078117800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2699827200).

2078117800 is an abundant number, since it is smaller than the sum of its proper divisors (3321536600).

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

2078117800 is a wasteful number, since it uses less digits than its factorization.

2078117800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23107 (or 23098 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 34.

The square root of 2078117800 is about 45586.3773511342. The cubic root of 2078117800 is about 1276.1157067272.

The spelling of 2078117800 in words is "two billion, seventy-eight million, one hundred seventeen thousand, eight hundred".