20145426337 has 2 divisors, whose sum is σ = 20145426338. Its totient is φ = 20145426336.

The previous prime is 20145426319. The next prime is 20145426401. The reversal of 20145426337 is 73362454102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11951736976 + 8193689361 = 109324^2 + 90519^2 .

It is a cyclic number.

It is not a de Polignac number, because 20145426337 - 2⁷ = 20145426209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20145426296 and 20145426305.

It is not a weakly prime, because it can be changed into another prime (20145426307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10072713168 + 10072713169.

It is an arithmetic number, because the mean of its divisors is an integer number (10072713169).

Almost surely, 2^20145426337 is an apocalyptic number.

It is an amenable number.

20145426337 is a deficient number, since it is larger than the sum of its proper divisors (1).

20145426337 is an equidigital number, since it uses as much as digits as its factorization.

20145426337 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 37.

The spelling of 20145426337 in words is "twenty billion, one hundred forty-five million, four hundred twenty-six thousand, three hundred thirty-seven".