675012409281 has 64 divisors (see below), whose sum is σ = 1156560537600. Its totient is φ = 381119256000.

The previous prime is 675012409189. The next prime is 675012409303. The reversal of 675012409281 is 182904210576.

675012409281 is a `hidden beast` number, since 67 + 501 + 2 + 4 + 0 + 9 + 2 + 81 = 666.

It is not a de Polignac number, because 675012409281 - 2¹¹ = 675012407233 is a prime.

It is a super-2 number, since 2×675012409281² (a number of 24 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (675012409781) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9336690 + ... + 9408708.

It is an arithmetic number, because the mean of its divisors is an integer number (18071258400).

Almost surely, 2^675012409281 is an apocalyptic number.

It is an amenable number.

675012409281 is a deficient number, since it is larger than the sum of its proper divisors (481548128319).

675012409281 is a wasteful number, since it uses less digits than its factorization.

675012409281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72627 (or 72621 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The spelling of 675012409281 in words is "six hundred seventy-five billion, twelve million, four hundred nine thousand, two hundred eighty-one".