945351991585 has 16 divisors (see below), whose sum is σ = 1171053729792. Its totient is φ = 731862244800.

The previous prime is 945351991583. The next prime is 945351991607. The reversal of 945351991585 is 585199153549.

It is not a de Polignac number, because 945351991585 - 2¹ = 945351991583 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (945351991583) 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, 6090967 + ... + 6244243.

It is an arithmetic number, because the mean of its divisors is an integer number (73190858112).

Almost surely, 2^945351991585 is an apocalyptic number.

It is an amenable number.

945351991585 is a deficient number, since it is larger than the sum of its proper divisors (225701738207).

945351991585 is a wasteful number, since it uses less digits than its factorization.

945351991585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193104.

The product of its digits is 43740000, while the sum is 64.

The spelling of 945351991585 in words is "nine hundred forty-five billion, three hundred fifty-one million, nine hundred ninety-one thousand, five hundred eighty-five".