975533511481 has 27 divisors (see below), whose sum is σ = 1019569253157. Its totient is φ = 933367995000.

The previous prime is 975533511427. The next prime is 975533511509. The reversal of 975533511481 is 184115335579.

The square root of 975533511481 is 987691.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 975533511481 - 2²¹ = 975531414329 is a prime.

It is a super-2 number, since 2×975533511481² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (975533511581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 4623381466 + ... + 4623381676.

It is an arithmetic number, because the mean of its divisors is an integer number (37761824191).

Almost surely, 2^975533511481 is an apocalyptic number.

975533511481 is the 987691-st square number.

975533511481 is the 493846-th centered octagonal number.

It is an amenable number.

975533511481 is a deficient number, since it is larger than the sum of its proper divisors (44035741676).

975533511481 is an frugal number, since it uses more digits than its factorization.

975533511481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 786 (or 393 counting only the distinct ones).

The product of its digits is 2268000, while the sum is 52.

The spelling of 975533511481 in words is "nine hundred seventy-five billion, five hundred thirty-three million, five hundred eleven thousand, four hundred eighty-one".