33139899073 has 2 divisors, whose sum is σ = 33139899074. Its totient is φ = 33139899072.

The previous prime is 33139899043. The next prime is 33139899083. The reversal of 33139899073 is 37099893133.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22255567489 + 10884331584 = 149183^2 + 104328^2 .

It is a cyclic number.

It is not a de Polignac number, because 33139899073 - 2⁵ = 33139899041 is a prime.

It is not a weakly prime, because it can be changed into another prime (33139899043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16569949536 + 16569949537.

It is an arithmetic number, because the mean of its divisors is an integer number (16569949537).

Almost surely, 2^33139899073 is an apocalyptic number.

It is an amenable number.

33139899073 is a deficient number, since it is larger than the sum of its proper divisors (1).

33139899073 is an equidigital number, since it uses as much as digits as its factorization.

33139899073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3306744, while the sum is 55.

The spelling of 33139899073 in words is "thirty-three billion, one hundred thirty-nine million, eight hundred ninety-nine thousand, seventy-three".