675541815858 has 320 divisors, whose sum is σ = 1984557915648. Its totient is φ = 166670161920.

The previous prime is 675541815857. The next prime is 675541815859. The reversal of 675541815858 is 858518145576.

675541815858 is a `hidden beast` number, since 6 + 7 + 5 + 5 + 41 + 8 + 1 + 585 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (675541815857) and next prime (675541815859).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 675541815795 and 675541815804.

It is not an unprimeable number, because it can be changed into a prime (675541815857) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 41844468 + ... + 41860608.

Almost surely, 2^675541815858 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 675541815858, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (992278957824).

675541815858 is an abundant number, since it is smaller than the sum of its proper divisors (1309016099790).

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

675541815858 is a wasteful number, since it uses less digits than its factorization.

675541815858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16359 (or 16350 counting only the distinct ones).

The product of its digits is 53760000, while the sum is 63.

The spelling of 675541815858 in words is "six hundred seventy-five billion, five hundred forty-one million, eight hundred fifteen thousand, eight hundred fifty-eight".