83402009573 has 2 divisors, whose sum is σ = 83402009574. Its totient is φ = 83402009572.

The previous prime is 83402009557. The next prime is 83402009611. The reversal of 83402009573 is 37590020438.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64792138849 + 18609870724 = 254543^2 + 136418^2 .

It is a cyclic number.

It is not a de Polignac number, because 83402009573 - 2⁴ = 83402009557 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 83402009573.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83402009533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41701004786 + 41701004787.

It is an arithmetic number, because the mean of its divisors is an integer number (41701004787).

Almost surely, 2^83402009573 is an apocalyptic number.

It is an amenable number.

83402009573 is a deficient number, since it is larger than the sum of its proper divisors (1).

83402009573 is an equidigital number, since it uses as much as digits as its factorization.

83402009573 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 41.

The spelling of 83402009573 in words is "eighty-three billion, four hundred two million, nine thousand, five hundred seventy-three".