20238062609 has 4 divisors (see below), whose sum is σ = 20296385904. Its totient is φ = 20179739316.

The previous prime is 20238062567. The next prime is 20238062623. The reversal of 20238062609 is 90626083202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 90626083202 = 2 ⋅45313041601.

It is a cyclic number.

It is not a de Polignac number, because 20238062609 - 2¹² = 20238058513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20238062639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29161127 + ... + 29161820.

It is an arithmetic number, because the mean of its divisors is an integer number (5074096476).

Almost surely, 2^20238062609 is an apocalyptic number.

It is an amenable number.

20238062609 is a deficient number, since it is larger than the sum of its proper divisors (58323295).

20238062609 is an equidigital number, since it uses as much as digits as its factorization.

20238062609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58323294.

The product of its (nonzero) digits is 62208, while the sum is 38.

The spelling of 20238062609 in words is "twenty billion, two hundred thirty-eight million, sixty-two thousand, six hundred nine".