6424187144 has 8 divisors (see below), whose sum is σ = 12045350910. Its totient is φ = 3212093568.

The previous prime is 6424187141. The next prime is 6424187179. The reversal of 6424187144 is 4417814246.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 6299596900 + 124590244 = 79370^2 + 11162^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×6424187144² = 82540360922269753472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6424187141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 401511689 + ... + 401511704.

Almost surely, 2^6424187144 is an apocalyptic number.

It is an amenable number.

6424187144 is a deficient number, since it is larger than the sum of its proper divisors (5621163766).

6424187144 is a wasteful number, since it uses less digits than its factorization.

6424187144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 803023399 (or 803023395 counting only the distinct ones).

The product of its digits is 172032, while the sum is 41.

The square root of 6424187144 is about 80151.0270926081. The cubic root of 6424187144 is about 1858.9714844025.

The spelling of 6424187144 in words is "six billion, four hundred twenty-four million, one hundred eighty-seven thousand, one hundred forty-four".