44394577919 has 8 divisors (see below), whose sum is σ = 45021878832. Its totient is φ = 43767794880.

The previous prime is 44394577859. The next prime is 44394577979. The reversal of 44394577919 is 91977549344.

It is an interprime number because it is at equal distance from previous prime (44394577859) and next prime (44394577979).

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

It is a cyclic number.

It is not a de Polignac number, because 44394577919 - 2³² = 40099610623 is a prime.

It is a super-2 number, since 2×44394577919² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44394577979) 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, 44837 + ... + 301329.

It is an arithmetic number, because the mean of its divisors is an integer number (5627734854).

Almost surely, 2^44394577919 is an apocalyptic number.

44394577919 is a deficient number, since it is larger than the sum of its proper divisors (627300913).

44394577919 is a wasteful number, since it uses less digits than its factorization.

44394577919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258937.

The product of its digits is 34292160, while the sum is 62.

The spelling of 44394577919 in words is "forty-four billion, three hundred ninety-four million, five hundred seventy-seven thousand, nine hundred nineteen".