945443509953 has 16 divisors (see below), whose sum is σ = 1290597175296. Its totient is φ = 615308435280.

The previous prime is 945443509943. The next prime is 945443510009. The reversal of 945443509953 is 359905344549.

It is not a de Polignac number, because 945443509953 - 2⁴ = 945443509937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (945443509943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1717225 + ... + 2199942.

It is an arithmetic number, because the mean of its divisors is an integer number (80662323456).

Almost surely, 2^945443509953 is an apocalyptic number.

It is an amenable number.

945443509953 is a deficient number, since it is larger than the sum of its proper divisors (345153665343).

945443509953 is a wasteful number, since it uses less digits than its factorization.

945443509953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3919084.

The product of its (nonzero) digits is 52488000, while the sum is 60.

The spelling of 945443509953 in words is "nine hundred forty-five billion, four hundred forty-three million, five hundred nine thousand, nine hundred fifty-three".