20138212349598 has 48 divisors (see below), whose sum is σ = 46852582147344. Its totient is φ = 5753724036480.

The previous prime is 20138212349557. The next prime is 20138212349611. The reversal of 20138212349598 is 89594321283102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43936986 + ... + 44392962.

It is an arithmetic number, because the mean of its divisors is an integer number (976095461403).

Almost surely, 2^{20138212349598} is an apocalyptic number.

20138212349598 is an abundant number, since it is smaller than the sum of its proper divisors (26714369797746).

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

20138212349598 is a wasteful number, since it uses less digits than its factorization.

20138212349598 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606217 (or 606210 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 57.

The spelling of 20138212349598 in words is "twenty trillion, one hundred thirty-eight billion, two hundred twelve million, three hundred forty-nine thousand, five hundred ninety-eight".