6444539298 has 24 divisors (see below), whose sum is σ = 13970401536. Its totient is φ = 2147067000.

The previous prime is 6444539291. The next prime is 6444539323. The reversal of 6444539298 is 8929354446.

6444539298 is a `hidden beast` number, since 64 + 44 + 539 + 2 + 9 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (6444539291) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56638 + ... + 126873.

It is an arithmetic number, because the mean of its divisors is an integer number (582100064).

Almost surely, 2^6444539298 is an apocalyptic number.

6444539298 is an abundant number, since it is smaller than the sum of its proper divisors (7525862238).

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

6444539298 is a wasteful number, since it uses less digits than its factorization.

6444539298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185470 (or 185467 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 54.

The square root of 6444539298 is about 80277.8879767025. The cubic root of 6444539298 is about 1860.9325206046.

The spelling of 6444539298 in words is "six billion, four hundred forty-four million, five hundred thirty-nine thousand, two hundred ninety-eight".