2145064468 has 12 divisors (see below), whose sum is σ = 3874955392. Its totient is φ = 1037934360.

The previous prime is 2145064463. The next prime is 2145064477. The reversal of 2145064468 is 8644605412.

It is a super-3 number, since 3×2145064468³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 2145064468.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145064463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8649330 + ... + 8649577.

Almost surely, 2^2145064468 is an apocalyptic number.

It is an amenable number.

2145064468 is a deficient number, since it is larger than the sum of its proper divisors (1729890924).

2145064468 is a wasteful number, since it uses less digits than its factorization.

2145064468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17298942 (or 17298940 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 40.

The square root of 2145064468 is about 46314.8406884877. The cubic root of 2145064468 is about 1289.6745103526.

The spelling of 2145064468 in words is "two billion, one hundred forty-five million, sixty-four thousand, four hundred sixty-eight".