3290648781 has 24 divisors (see below), whose sum is σ = 5064789952. Its totient is φ = 1861632000.

The previous prime is 3290648749. The next prime is 3290648783. The reversal of 3290648781 is 1878460923.

It is not a de Polignac number, because 3290648781 - 2⁵ = 3290648749 is a prime.

It is a super-2 number, since 2×3290648781² = 21656738799793571922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3290648781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3290648783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 206541 + ... + 221901.

Almost surely, 2^3290648781 is an apocalyptic number.

It is an amenable number.

3290648781 is a deficient number, since it is larger than the sum of its proper divisors (1774141171).

3290648781 is a wasteful number, since it uses less digits than its factorization.

3290648781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15573 (or 15472 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 48.

The square root of 3290648781 is about 57364.1768092248. The cubic root of 3290648781 is about 1487.3979450827.

The spelling of 3290648781 in words is "three billion, two hundred ninety million, six hundred forty-eight thousand, seven hundred eighty-one".