44246779993 has 8 divisors (see below), whose sum is σ = 47813011848. Its totient is φ = 40703781504.

The previous prime is 44246779991. The next prime is 44246780009. The reversal of 44246779993 is 39997764244.

It can be written as a sum of positive squares in 4 ways, for example, as 7715338569 + 36531441424 = 87837^2 + 191132^2 .

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 44246779993 - 2¹ = 44246779991 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44246779991) 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, 5804380 + ... + 5811997.

It is an arithmetic number, because the mean of its divisors is an integer number (5976626481).

Almost surely, 2^44246779993 is an apocalyptic number.

It is an amenable number.

44246779993 is a deficient number, since it is larger than the sum of its proper divisors (3566231855).

44246779993 is a wasteful number, since it uses less digits than its factorization.

44246779993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11616683.

The product of its digits is 82301184, while the sum is 64.

The spelling of 44246779993 in words is "forty-four billion, two hundred forty-six million, seven hundred seventy-nine thousand, nine hundred ninety-three".