20438463283198 has 16 divisors (see below), whose sum is σ = 31115698306704. Its totient is φ = 10066568022720.

The previous prime is 20438463283157. The next prime is 20438463283201. The reversal of 20438463283198 is 89138236483402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9154186 + ... + 11165842.

It is an arithmetic number, because the mean of its divisors is an integer number (1944731144169).

Almost surely, 2^{20438463283198} is an apocalyptic number.

20438463283198 is a deficient number, since it is larger than the sum of its proper divisors (10677235023506).

20438463283198 is a wasteful number, since it uses less digits than its factorization.

20438463283198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2087547.

The product of its (nonzero) digits is 47775744, while the sum is 61.

The spelling of 20438463283198 in words is "twenty trillion, four hundred thirty-eight billion, four hundred sixty-three million, two hundred eighty-three thousand, one hundred ninety-eight".