20133421869 has 32 divisors (see below), whose sum is σ = 30211743744. Its totient is φ = 11818889280.

The previous prime is 20133421837. The next prime is 20133421897. The reversal of 20133421869 is 96812433102.

It is not a de Polignac number, because 20133421869 - 2⁵ = 20133421837 is a prime.

It is a super-2 number, since 2×20133421869² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20133421069) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 235312 + ... + 309254.

It is an arithmetic number, because the mean of its divisors is an integer number (944116992).

Almost surely, 2^20133421869 is an apocalyptic number.

It is an amenable number.

20133421869 is a deficient number, since it is larger than the sum of its proper divisors (10078321875).

20133421869 is a wasteful number, since it uses less digits than its factorization.

20133421869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74217.

The product of its (nonzero) digits is 62208, while the sum is 39.

The spelling of 20133421869 in words is "twenty billion, one hundred thirty-three million, four hundred twenty-one thousand, eight hundred sixty-nine".