20080207493 has 2 divisors, whose sum is σ = 20080207494. Its totient is φ = 20080207492.

The previous prime is 20080207489. The next prime is 20080207529. The reversal of 20080207493 is 39470208002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19874514529 + 205692964 = 140977^2 + 14342^2 .

It is a cyclic number.

It is not a de Polignac number, because 20080207493 - 2² = 20080207489 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20080207423) 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 as a sum of consecutive naturals, namely, 10040103746 + 10040103747.

It is an arithmetic number, because the mean of its divisors is an integer number (10040103747).

Almost surely, 2^20080207493 is an apocalyptic number.

It is an amenable number.

20080207493 is a deficient number, since it is larger than the sum of its proper divisors (1).

20080207493 is an equidigital number, since it uses as much as digits as its factorization.

20080207493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 35.

The spelling of 20080207493 in words is "twenty billion, eighty million, two hundred seven thousand, four hundred ninety-three".