20348201439 has 12 divisors (see below), whose sum is σ = 29445586456. Its totient is φ = 13540664592.

The previous prime is 20348201431. The next prime is 20348201443. The reversal of 20348201439 is 93410284302.

It is not a de Polignac number, because 20348201439 - 2³ = 20348201431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20348201431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2061724 + ... + 2071569.

Almost surely, 2^20348201439 is an apocalyptic number.

20348201439 is a deficient number, since it is larger than the sum of its proper divisors (9097385017).

20348201439 is a wasteful number, since it uses less digits than its factorization.

20348201439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4133846 (or 4133843 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The spelling of 20348201439 in words is "twenty billion, three hundred forty-eight million, two hundred one thousand, four hundred thirty-nine".