6440007153 has 16 divisors (see below), whose sum is σ = 8963767296. Its totient is φ = 4104949200.

The previous prime is 6440007151. The next prime is 6440007179. The reversal of 6440007153 is 3517000446.

It is not a de Polignac number, because 6440007153 - 2¹ = 6440007151 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6440007153.

It is not an unprimeable number, because it can be changed into a prime (6440007151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157726 + ... + 194312.

It is an arithmetic number, because the mean of its divisors is an integer number (560235456).

Almost surely, 2^6440007153 is an apocalyptic number.

It is an amenable number.

6440007153 is a deficient number, since it is larger than the sum of its proper divisors (2523760143).

6440007153 is a wasteful number, since it uses less digits than its factorization.

6440007153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39164.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 6440007153 is about 80249.6551581376. The cubic root of 6440007153 is about 1860.4961825161.

Adding to 6440007153 its reverse (3517000446), we get a palindrome (9957007599).

The spelling of 6440007153 in words is "six billion, four hundred forty million, seven thousand, one hundred fifty-three".