20192812613 has 2 divisors, whose sum is σ = 20192812614. Its totient is φ = 20192812612.

The previous prime is 20192812589. The next prime is 20192812657. The reversal of 20192812613 is 31621829102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18386817604 + 1805995009 = 135598^2 + 42497^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20192812613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20192812693) 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, 10096406306 + 10096406307.

It is an arithmetic number, because the mean of its divisors is an integer number (10096406307).

Almost surely, 2^20192812613 is an apocalyptic number.

It is an amenable number.

20192812613 is a deficient number, since it is larger than the sum of its proper divisors (1).

20192812613 is an equidigital number, since it uses as much as digits as its factorization.

20192812613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 35.

The spelling of 20192812613 in words is "twenty billion, one hundred ninety-two million, eight hundred twelve thousand, six hundred thirteen".