4645678349 has 24 divisors (see below), whose sum is σ = 5416917120. Its totient is φ = 3967511808.

The previous prime is 4645678309. The next prime is 4645678369. The reversal of 4645678349 is 9438765464.

It is not a de Polignac number, because 4645678349 - 2¹⁶ = 4645612813 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4645678294 and 4645678303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4645678309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 155804 + ... + 183210.

It is an arithmetic number, because the mean of its divisors is an integer number (225704880).

Almost surely, 2^4645678349 is an apocalyptic number.

It is an amenable number.

4645678349 is a deficient number, since it is larger than the sum of its proper divisors (771238771).

4645678349 is a wasteful number, since it uses less digits than its factorization.

4645678349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27509 (or 27496 counting only the distinct ones).

The product of its digits is 17418240, while the sum is 56.

The square root of 4645678349 is about 68159.2132363630. The cubic root of 4645678349 is about 1668.5902919364.

The spelling of 4645678349 in words is "four billion, six hundred forty-five million, six hundred seventy-eight thousand, three hundred forty-nine".