44729610661 has 4 divisors (see below), whose sum is σ = 44926657632. Its totient is φ = 44532563692.

The previous prime is 44729610659. The next prime is 44729610683. The reversal of 44729610661 is 16601692744.

44729610661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 44729610661 - 2¹ = 44729610659 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44729610631) 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, 98523145 + ... + 98523598.

It is an arithmetic number, because the mean of its divisors is an integer number (11231664408).

Almost surely, 2^44729610661 is an apocalyptic number.

It is an amenable number.

44729610661 is a deficient number, since it is larger than the sum of its proper divisors (197046971).

44729610661 is a wasteful number, since it uses less digits than its factorization.

44729610661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197046970.

The product of its (nonzero) digits is 435456, while the sum is 46.

The spelling of 44729610661 in words is "forty-four billion, seven hundred twenty-nine million, six hundred ten thousand, six hundred sixty-one".