20078890000 has 225 divisors, whose sum is σ = 53127480483. Its totient is φ = 7345728000.

The previous prime is 20078889997. The next prime is 20078890021. The reversal of 20078890000 is 9887002.

It is a happy number.

The square root of 20078890000 is 141700.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 22 ways, for example, as 15929468944 + 4149421056 = 126212^2 + 64416^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 184209946 + ... + 184210054.

Almost surely, 2^20078890000 is an apocalyptic number.

20078890000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

20078890000 is the 141700-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20078890000

20078890000 is an abundant number, since it is smaller than the sum of its proper divisors (33048590483).

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

20078890000 is an equidigital number, since it uses as much as digits as its factorization.

20078890000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272 (or 129 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 34.

The spelling of 20078890000 in words is "twenty billion, seventy-eight million, eight hundred ninety thousand".