20426237045 has 8 divisors (see below), whose sum is σ = 24913312440. Its totient is φ = 16073104320.

The previous prime is 20426237017. The next prime is 20426237093. The reversal of 20426237045 is 54073262402.

It can be written as a sum of positive squares in 4 ways, for example, as 127396369 + 20298840676 = 11287^2 + 142474^2 .

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

It is not a de Polignac number, because 20426237045 - 2²⁸ = 20157801589 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20426236996 and 20426237014.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 33485330 + ... + 33485939.

It is an arithmetic number, because the mean of its divisors is an integer number (3114164055).

Almost surely, 2^20426237045 is an apocalyptic number.

It is an amenable number.

20426237045 is a deficient number, since it is larger than the sum of its proper divisors (4487075395).

20426237045 is an equidigital number, since it uses as much as digits as its factorization.

20426237045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66971335.

The product of its (nonzero) digits is 80640, while the sum is 35.

Adding to 20426237045 its reverse (54073262402), we get a palindrome (74499499447).

The spelling of 20426237045 in words is "twenty billion, four hundred twenty-six million, two hundred thirty-seven thousand, forty-five".