5424331645 has 4 divisors (see below), whose sum is σ = 6509197980. Its totient is φ = 4339465312.

The previous prime is 5424331639. The next prime is 5424331673. The reversal of 5424331645 is 5461334245.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2315823129 + 3108508516 = 48123^2 + 55754^2 .

It is a cyclic number.

It is not a de Polignac number, because 5424331645 - 2³ = 5424331637 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 542433160 + ... + 542433169.

It is an arithmetic number, because the mean of its divisors is an integer number (1627299495).

Almost surely, 2^5424331645 is an apocalyptic number.

It is an amenable number.

5424331645 is a deficient number, since it is larger than the sum of its proper divisors (1084866335).

5424331645 is a wasteful number, since it uses less digits than its factorization.

5424331645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1084866334.

The product of its digits is 172800, while the sum is 37.

The square root of 5424331645 is about 73650.0620841558. The cubic root of 5424331645 is about 1757.0417381149.

The spelling of 5424331645 in words is "five billion, four hundred twenty-four million, three hundred thirty-one thousand, six hundred forty-five".