20235221863 has 8 divisors (see below), whose sum is σ = 21311619120. Its totient is φ = 19159963200.

The previous prime is 20235221857. The next prime is 20235221887. The reversal of 20235221863 is 36812253202.

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

It is a cyclic number.

It is not a de Polignac number, because 20235221863 - 2²¹ = 20233124711 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 (20235221803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248038 + ... + 319363.

It is an arithmetic number, because the mean of its divisors is an integer number (2663952390).

Almost surely, 2^20235221863 is an apocalyptic number.

20235221863 is a deficient number, since it is larger than the sum of its proper divisors (1076397257).

20235221863 is a wasteful number, since it uses less digits than its factorization.

20235221863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569297.

The product of its (nonzero) digits is 34560, while the sum is 34.

The spelling of 20235221863 in words is "twenty billion, two hundred thirty-five million, two hundred twenty-one thousand, eight hundred sixty-three".