214780285452 has 12 divisors (see below), whose sum is σ = 501153999416. Its totient is φ = 71593428480.

The previous prime is 214780285399. The next prime is 214780285457. The reversal of 214780285452 is 254582087412.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×214780285452² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (214780285457) 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, 8949178549 + ... + 8949178572.

Almost surely, 2^214780285452 is an apocalyptic number.

It is an amenable number.

214780285452 is an abundant number, since it is smaller than the sum of its proper divisors (286373713964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

214780285452 is a wasteful number, since it uses less digits than its factorization.

214780285452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17898357128 (or 17898357126 counting only the distinct ones).

The product of its (nonzero) digits is 1433600, while the sum is 48.

The spelling of 214780285452 in words is "two hundred fourteen billion, seven hundred eighty million, two hundred eighty-five thousand, four hundred fifty-two".