4645311331 has 4 divisors (see below), whose sum is σ = 4649279464. Its totient is φ = 4641343200.

The previous prime is 4645311313. The next prime is 4645311337. The reversal of 4645311331 is 1331135464.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4645311331 - 2²¹ = 4643214179 is a prime.

It is a super-2 number, since 2×4645311331² = 43157834723833983122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4645311293 and 4645311302.

It is not an unprimeable number, because it can be changed into a prime (4645311337) 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, 1982310 + ... + 1984651.

It is an arithmetic number, because the mean of its divisors is an integer number (1162319866).

Almost surely, 2^4645311331 is an apocalyptic number.

4645311331 is a deficient number, since it is larger than the sum of its proper divisors (3968133).

4645311331 is a wasteful number, since it uses less digits than its factorization.

4645311331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3968132.

The product of its digits is 12960, while the sum is 31.

The square root of 4645311331 is about 68156.5208252299. The cubic root of 4645311331 is about 1668.5463501082.

Adding to 4645311331 its reverse (1331135464), we get a palindrome (5976446795).

The spelling of 4645311331 in words is "four billion, six hundred forty-five million, three hundred eleven thousand, three hundred thirty-one".