33649779510649 has 3 divisors (see below), whose sum is σ = 33649785311493. Its totient is φ = 33649773709806.

The previous prime is 33649779510647. The next prime is 33649779510671. The reversal of 33649779510649 is 94601597794633.

The square root of 33649779510649 is 5800843.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 33649779510649 - 2¹ = 33649779510647 is a prime.

It is a super-2 number, since 2×33649779510649² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33649779510647) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2900422 + ... + 8701264.

It is an arithmetic number, because the mean of its divisors is an integer number (11216595103831).

Almost surely, 2^{33649779510649} is an apocalyptic number.

33649779510649 is the 5800843-rd square number.

33649779510649 is the 2900422-nd centered octagonal number.

It is an amenable number.

33649779510649 is a deficient number, since it is larger than the sum of its proper divisors (5800844).

33649779510649 is an frugal number, since it uses more digits than its factorization.

33649779510649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11601686 (or 5800843 counting only the distinct ones).

The product of its (nonzero) digits is 925888320, while the sum is 73.

The spelling of 33649779510649 in words is "thirty-three trillion, six hundred forty-nine billion, seven hundred seventy-nine million, five hundred ten thousand, six hundred forty-nine".