44351919987 has 16 divisors (see below), whose sum is σ = 60308575488. Its totient is φ = 28982659680.

The previous prime is 44351919961. The next prime is 44351920087. The reversal of 44351919987 is 78991915344.

It is not a de Polignac number, because 44351919987 - 2¹² = 44351915891 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 44351919987.

It is not an unprimeable number, because it can be changed into a prime (44351919947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37812 + ... + 300222.

It is an arithmetic number, because the mean of its divisors is an integer number (3769285968).

Almost surely, 2^44351919987 is an apocalyptic number.

44351919987 is a deficient number, since it is larger than the sum of its proper divisors (15956655501).

44351919987 is a wasteful number, since it uses less digits than its factorization.

44351919987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263530.

The product of its digits is 9797760, while the sum is 60.

The spelling of 44351919987 in words is "forty-four billion, three hundred fifty-one million, nine hundred nineteen thousand, nine hundred eighty-seven".