675513485821 has 16 divisors (see below), whose sum is σ = 713572580160. Its totient is φ = 637707340800.

The previous prime is 675513485819. The next prime is 675513485869. The reversal of 675513485821 is 128584315576.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 675513485821 - 2¹ = 675513485819 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (675513480821) 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, 10523395 + ... + 10587391.

It is an arithmetic number, because the mean of its divisors is an integer number (44598286260).

Almost surely, 2^675513485821 is an apocalyptic number.

It is an amenable number.

675513485821 is a deficient number, since it is larger than the sum of its proper divisors (38059094339).

675513485821 is a wasteful number, since it uses less digits than its factorization.

675513485821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65964.

The product of its digits is 8064000, while the sum is 55.

The spelling of 675513485821 in words is "six hundred seventy-five billion, five hundred thirteen million, four hundred eighty-five thousand, eight hundred twenty-one".