5644357642 has 128 divisors (see below), whose sum is σ = 11367641088. Its totient is φ = 2037235200.

The previous prime is 5644357637. The next prime is 5644357651. The reversal of 5644357642 is 2467534465.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a junction number, because it is equal to n+sod(n) for n = 5644357592 and 5644357601.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 20086542 + ... + 20086822.

It is an arithmetic number, because the mean of its divisors is an integer number (88809696).

Almost surely, 2^5644357642 is an apocalyptic number.

5644357642 is an abundant number, since it is smaller than the sum of its proper divisors (5723283446).

5644357642 is a wasteful number, since it uses less digits than its factorization.

5644357642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484.

The product of its digits is 2419200, while the sum is 46.

The square root of 5644357642 is about 75128.9401096541. The cubic root of 5644357642 is about 1780.4844073615.

The spelling of 5644357642 in words is "five billion, six hundred forty-four million, three hundred fifty-seven thousand, six hundred forty-two".