33498637849 has 2 divisors, whose sum is σ = 33498637850. Its totient is φ = 33498637848.

The previous prime is 33498637829. The next prime is 33498637927. The reversal of 33498637849 is 94873689433.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26516865600 + 6981772249 = 162840^2 + 83557^2 .

It is a cyclic number.

It is not a de Polignac number, because 33498637849 - 2²¹ = 33496540697 is a prime.

It is a super-2 number, since 2×33498637849² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (33498637829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16749318924 + 16749318925.

It is an arithmetic number, because the mean of its divisors is an integer number (16749318925).

Almost surely, 2^33498637849 is an apocalyptic number.

It is an amenable number.

33498637849 is a deficient number, since it is larger than the sum of its proper divisors (1).

33498637849 is an equidigital number, since it uses as much as digits as its factorization.

33498637849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 94058496, while the sum is 64.

The spelling of 33498637849 in words is "thirty-three billion, four hundred ninety-eight million, six hundred thirty-seven thousand, eight hundred forty-nine".