652489337274228 has 18 divisors (see below), whose sum is σ = 1649348046998834. Its totient is φ = 217496445758064.

The previous prime is 652489337274223. The next prime is 652489337274233. The reversal of 652489337274228 is 822472733984256.

652489337274228 is a `hidden beast` number, since 6 + 5 + 2 + 48 + 9 + 337 + 27 + 4 + 228 = 666.

It is an interprime number because it is at equal distance from previous prime (652489337274223) and next prime (652489337274233).

It can be written as a sum of positive squares in only one way, i.e., 609642913138704 + 42846424135524 = 24690948^2 + 6545718^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-3 number, since 3×652489337274228³ (a number of 45 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (652489337274223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9062351906551 + ... + 9062351906622.

Almost surely, 2^{652489337274228} is an apocalyptic number.

It is an amenable number.

652489337274228 is an abundant number, since it is smaller than the sum of its proper divisors (996858709724606).

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

652489337274228 is a wasteful number, since it uses less digits than its factorization.

652489337274228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18124703813183 (or 18124703813178 counting only the distinct ones).

The product of its digits is 1950842880, while the sum is 72.

The spelling of 652489337274228 in words is "six hundred fifty-two trillion, four hundred eighty-nine billion, three hundred thirty-seven million, two hundred seventy-four thousand, two hundred twenty-eight".