44616861645 has 8 divisors (see below), whose sum is σ = 71386978656. Its totient is φ = 23795659536.

The previous prime is 44616861613. The next prime is 44616861677. The reversal of 44616861645 is 54616861644.

It is an interprime number because it is at equal distance from previous prime (44616861613) and next prime (44616861677).

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

It is not a de Polignac number, because 44616861645 - 2⁵ = 44616861613 is a prime.

It is a super-3 number, since 3×44616861645³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1487228707 + ... + 1487228736.

It is an arithmetic number, because the mean of its divisors is an integer number (8923372332).

Almost surely, 2^44616861645 is an apocalyptic number.

It is an amenable number.

44616861645 is a deficient number, since it is larger than the sum of its proper divisors (26770117011).

44616861645 is a wasteful number, since it uses less digits than its factorization.

44616861645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2974457451.

The product of its digits is 3317760, while the sum is 51.

Subtracting 44616861645 from its reverse (54616861644), we obtain a palindrome (9999999999).

The spelling of 44616861645 in words is "forty-four billion, six hundred sixteen million, eight hundred sixty-one thousand, six hundred forty-five".