6534442463641 has 4 divisors (see below), whose sum is σ = 6592269388212. Its totient is φ = 6476615539072.

The previous prime is 6534442463621. The next prime is 6534442463677. The reversal of 6534442463641 is 1463642444356.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1819790208016 + 4714652255625 = 1348996^2 + 2171325^2 .

It is a cyclic number.

It is not a de Polignac number, because 6534442463641 - 2⁵ = 6534442463609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6534442463611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28913462116 + ... + 28913462341.

It is an arithmetic number, because the mean of its divisors is an integer number (1648067347053).

Almost surely, 2^{6534442463641} is an apocalyptic number.

It is an amenable number.

6534442463641 is a deficient number, since it is larger than the sum of its proper divisors (57826924571).

6534442463641 is a wasteful number, since it uses less digits than its factorization.

6534442463641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57826924570.

The product of its digits is 19906560, while the sum is 52.

The spelling of 6534442463641 in words is "six trillion, five hundred thirty-four billion, four hundred forty-two million, four hundred sixty-three thousand, six hundred forty-one".