945202021889 has 16 divisors (see below), whose sum is σ = 969675784704. Its totient is φ = 920977512000.

The previous prime is 945202021811. The next prime is 945202021937. The reversal of 945202021889 is 988120202549.

It is a cyclic number.

It is not a de Polignac number, because 945202021889 - 2²⁴ = 945185244673 is a prime.

It is a super-3 number, since 3×945202021889³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (945202021289) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34166987 + ... + 34194639.

It is an arithmetic number, because the mean of its divisors is an integer number (60604736544).

Almost surely, 2^945202021889 is an apocalyptic number.

It is an amenable number.

945202021889 is a deficient number, since it is larger than the sum of its proper divisors (24473762815).

945202021889 is a wasteful number, since it uses less digits than its factorization.

945202021889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32128.

The product of its (nonzero) digits is 829440, while the sum is 50.

The spelling of 945202021889 in words is "nine hundred forty-five billion, two hundred two million, twenty-one thousand, eight hundred eighty-nine".