44451820653 has 8 divisors (see below), whose sum is σ = 60647445408. Its totient is φ = 28945371504.

The previous prime is 44451820639. The next prime is 44451820657. The reversal of 44451820653 is 35602815444.

44451820653 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 44451820653 - 2⁹ = 44451820141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44451820657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172293750 + ... + 172294007.

It is an arithmetic number, because the mean of its divisors is an integer number (7580930676).

Almost surely, 2^44451820653 is an apocalyptic number.

44451820653 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

It is an amenable number.

44451820653 is a deficient number, since it is larger than the sum of its proper divisors (16195624755).

44451820653 is a wasteful number, since it uses less digits than its factorization.

44451820653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344587803.

The product of its (nonzero) digits is 460800, while the sum is 42.

The spelling of 44451820653 in words is "forty-four billion, four hundred fifty-one million, eight hundred twenty thousand, six hundred fifty-three".