44001649999 has 8 divisors (see below), whose sum is σ = 44594771760. Its totient is φ = 43412469696.

The previous prime is 44001649961. The next prime is 44001650047. The reversal of 44001649999 is 99994610044.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44001649999 is a prime.

It is a super-2 number, since 2×44001649999² (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 (44001649099) 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, 962884 + ... + 1007545.

It is an arithmetic number, because the mean of its divisors is an integer number (5574346470).

Almost surely, 2^44001649999 is an apocalyptic number.

44001649999 is a deficient number, since it is larger than the sum of its proper divisors (593121761).

44001649999 is a wasteful number, since it uses less digits than its factorization.

44001649999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1970729.

The product of its (nonzero) digits is 2519424, while the sum is 55.

The spelling of 44001649999 in words is "forty-four billion, one million, six hundred forty-nine thousand, nine hundred ninety-nine".