3061380649 has 4 divisors (see below), whose sum is σ = 3089466820. Its totient is φ = 3033294480.

The previous prime is 3061380631. The next prime is 3061380653. The reversal of 3061380649 is 9460831603.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9460831603 = 2971 ⋅3184393.

It can be written as a sum of positive squares in 2 ways, for example, as 1052548249 + 2008832400 = 32443^2 + 44820^2 .

It is a cyclic number.

It is not a de Polignac number, because 3061380649 - 2⁷ = 3061380521 is a prime.

It is a super-2 number, since 2×3061380649² = 18744102956143322402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3061380449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14042922 + ... + 14043139.

It is an arithmetic number, because the mean of its divisors is an integer number (772366705).

Almost surely, 2^3061380649 is an apocalyptic number.

It is an amenable number.

3061380649 is a deficient number, since it is larger than the sum of its proper divisors (28086171).

3061380649 is a wasteful number, since it uses less digits than its factorization.

3061380649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28086170.

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 3061380649 is about 55329.7447039113. The cubic root of 3061380649 is about 1452.0194847527.

The spelling of 3061380649 in words is "three billion, sixty-one million, three hundred eighty thousand, six hundred forty-nine".