20089211490 has 128 divisors (see below), whose sum is σ = 54576288000. Its totient is φ = 5256949248.

The previous prime is 20089211411. The next prime is 20089211501. The reversal of 20089211490 is 9411298002.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17793246 + ... + 17794374.

It is an arithmetic number, because the mean of its divisors is an integer number (426377250).

Almost surely, 2^20089211490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20089211490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27288144000).

20089211490 is an abundant number, since it is smaller than the sum of its proper divisors (34487076510).

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

20089211490 is a wasteful number, since it uses less digits than its factorization.

20089211490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2321 (or 2315 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The spelling of 20089211490 in words is "twenty billion, eighty-nine million, two hundred eleven thousand, four hundred ninety".