44134624561 has 4 divisors (see below), whose sum is σ = 44471530224. Its totient is φ = 43797718900.

The previous prime is 44134624549. The next prime is 44134624591. The reversal of 44134624561 is 16542643144.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 44134624561 - 2⁷ = 44134624433 is a prime.

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 Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44134624591) 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, 168452635 + ... + 168452896.

It is an arithmetic number, because the mean of its divisors is an integer number (11117882556).

Almost surely, 2^44134624561 is an apocalyptic number.

It is an amenable number.

44134624561 is a deficient number, since it is larger than the sum of its proper divisors (336905663).

44134624561 is a wasteful number, since it uses less digits than its factorization.

44134624561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336905662.

The product of its digits is 276480, while the sum is 40.

The spelling of 44134624561 in words is "forty-four billion, one hundred thirty-four million, six hundred twenty-four thousand, five hundred sixty-one".