20108070269 has 12 divisors (see below), whose sum is σ = 23395003164. Its totient is φ = 17232554304.

The previous prime is 20108070259. The next prime is 20108070277. The reversal of 20108070269 is 96207080102.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5500447225 + 14607623044 = 74165^2 + 120862^2 .

It is a de Polignac number, because none of the positive numbers 2^k-20108070269 is a prime.

It is a super-2 number, since 2×20108070269² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20108070259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 285479 + ... + 348875.

It is an arithmetic number, because the mean of its divisors is an integer number (1949583597).

Almost surely, 2^20108070269 is an apocalyptic number.

It is an amenable number.

20108070269 is a deficient number, since it is larger than the sum of its proper divisors (3286932895).

20108070269 is an equidigital number, since it uses as much as digits as its factorization.

20108070269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69884 (or 69877 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 35.

The spelling of 20108070269 in words is "twenty billion, one hundred eight million, seventy thousand, two hundred sixty-nine".