20473474613 has 2 divisors, whose sum is σ = 20473474614. Its totient is φ = 20473474612.

The previous prime is 20473474603. The next prime is 20473474673. The reversal of 20473474613 is 31647437402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12697233124 + 7776241489 = 112682^2 + 88183^2 .

It is a cyclic number.

It is not a de Polignac number, because 20473474613 - 2⁴ = 20473474597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20473474603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10236737306 + 10236737307.

It is an arithmetic number, because the mean of its divisors is an integer number (10236737307).

Almost surely, 2^20473474613 is an apocalyptic number.

It is an amenable number.

20473474613 is a deficient number, since it is larger than the sum of its proper divisors (1).

20473474613 is an equidigital number, since it uses as much as digits as its factorization.

20473474613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 338688, while the sum is 41.

The spelling of 20473474613 in words is "twenty billion, four hundred seventy-three million, four hundred seventy-four thousand, six hundred thirteen".