6441536254 has 4 divisors (see below), whose sum is σ = 9662304384. Its totient is φ = 3220768126.

The previous prime is 6441536251. The next prime is 6441536303. The reversal of 6441536254 is 4526351446.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6441536251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1610384062 + ... + 1610384065.

It is an arithmetic number, because the mean of its divisors is an integer number (2415576096).

Almost surely, 2^6441536254 is an apocalyptic number.

6441536254 is a deficient number, since it is larger than the sum of its proper divisors (3220768130).

6441536254 is a wasteful number, since it uses less digits than its factorization.

6441536254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3220768129.

The product of its digits is 345600, while the sum is 40.

The square root of 6441536254 is about 80259.1817426517. The cubic root of 6441536254 is about 1860.6434215576.

The spelling of 6441536254 in words is "six billion, four hundred forty-one million, five hundred thirty-six thousand, two hundred fifty-four".