8775481920975 has 648 divisors, whose sum is σ = 21940326145920. Its totient is φ = 3454739164800.

The previous prime is 8775481920973. The next prime is 8775481921049. The reversal of 8775481920975 is 5790291845778.

8775481920975 is a `hidden beast` number, since 8 + 7 + 7 + 548 + 1 + 9 + 2 + 0 + 9 + 75 = 666.

It is not a de Polignac number, because 8775481920975 - 2¹ = 8775481920973 is a prime.

It is a super-2 number, since 2×8775481920975² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8775481920973) by changing a digit.

It is a polite number, since it can be written in 647 ways as a sum of consecutive naturals, for example, 684348414 + ... + 684361236.

Almost surely, 2^{8775481920975} is an apocalyptic number.

8775481920975 is an abundant number, since it is smaller than the sum of its proper divisors (13164844224945).

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

8775481920975 is a wasteful number, since it uses less digits than its factorization.

8775481920975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12903 (or 12868 counting only the distinct ones).

The product of its (nonzero) digits is 355622400, while the sum is 72.

The spelling of 8775481920975 in words is "eight trillion, seven hundred seventy-five billion, four hundred eighty-one million, nine hundred twenty thousand, nine hundred seventy-five".