20793591000 has 1440 divisors, whose sum is σ = 94509866880. Its totient is φ = 4245696000.

The previous prime is 20793590999. The next prime is 20793591017. The reversal of 20793591000 is 19539702.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 359 ways as a sum of consecutive naturals, for example, 670760985 + ... + 670761015.

It is an arithmetic number, because the mean of its divisors is an integer number (65631852).

Almost surely, 2^20793591000 is an apocalyptic number.

20793591000 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 20793591000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47254933440).

20793591000 is an abundant number, since it is smaller than the sum of its proper divisors (73716275880).

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

20793591000 is a wasteful number, since it uses less digits than its factorization.

20793591000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104 (or 61 counting only the distinct ones).

The product of its (nonzero) digits is 17010, while the sum is 36.

The spelling of 20793591000 in words is "twenty billion, seven hundred ninety-three million, five hundred ninety-one thousand".