6443151140 has 24 divisors (see below), whose sum is σ = 13896311352. Its totient is φ = 2507604480.

The previous prime is 6443151101. The next prime is 6443151149. The reversal of 6443151140 is 411513446.

It can be written as a sum of positive squares in 4 ways, for example, as 1027074304 + 5416076836 = 32048^2 + 73594^2 .

It is a super-2 number, since 2×6443151140² = 83028393225766599200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6443151149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4352741 + ... + 4354220.

It is an arithmetic number, because the mean of its divisors is an integer number (579012973).

Almost surely, 2^6443151140 is an apocalyptic number.

It is an amenable number.

6443151140 is an abundant number, since it is smaller than the sum of its proper divisors (7453160212).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6443151140 is a wasteful number, since it uses less digits than its factorization.

6443151140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8707007 (or 8707005 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 6443151140 is about 80269.2415561528. The cubic root of 6443151140 is about 1860.7988956472.

Adding to 6443151140 its reverse (411513446), we get a palindrome (6854664586).

The spelling of 6443151140 in words is "six billion, four hundred forty-three million, one hundred fifty-one thousand, one hundred forty".