44378616961 has 4 divisors (see below), whose sum is σ = 50718419392. Its totient is φ = 38038814532.

The previous prime is 44378616941. The next prime is 44378616967. The reversal of 44378616961 is 16961687344.

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 44378616961 - 2⁷ = 44378616833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44378616967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3169901205 + ... + 3169901218.

It is an arithmetic number, because the mean of its divisors is an integer number (12679604848).

Almost surely, 2^44378616961 is an apocalyptic number.

It is an amenable number.

44378616961 is a deficient number, since it is larger than the sum of its proper divisors (6339802431).

44378616961 is an equidigital number, since it uses as much as digits as its factorization.

44378616961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6339802430.

The product of its digits is 5225472, while the sum is 55.

The spelling of 44378616961 in words is "forty-four billion, three hundred seventy-eight million, six hundred sixteen thousand, nine hundred sixty-one".