20109393830 has 8 divisors (see below), whose sum is σ = 36196908912. Its totient is φ = 8043757528.

The previous prime is 20109393769. The next prime is 20109393839. The reversal of 20109393830 is 3839390102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20109393839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1005469682 + ... + 1005469701.

It is an arithmetic number, because the mean of its divisors is an integer number (4524613614).

Almost surely, 2^20109393830 is an apocalyptic number.

20109393830 is a deficient number, since it is larger than the sum of its proper divisors (16087515082).

20109393830 is a wasteful number, since it uses less digits than its factorization.

20109393830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2010939390.

The product of its (nonzero) digits is 34992, while the sum is 38.

The spelling of 20109393830 in words is "twenty billion, one hundred nine million, three hundred ninety-three thousand, eight hundred thirty".