512481135581331 has 48 divisors (see below), whose sum is σ = 845214600248064. Its totient is φ = 270419726992896.

The previous prime is 512481135581291. The next prime is 512481135581447. The reversal of 512481135581331 is 133185531184215.

It is not a de Polignac number, because 512481135581331 - 2⁷ = 512481135581203 is a prime.

It is a super-2 number, since 2×512481135581331² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (512481135581131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 796305085 + ... + 796948398.

It is an arithmetic number, because the mean of its divisors is an integer number (17608637505168).

Almost surely, 2^{512481135581331} is an apocalyptic number.

512481135581331 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

512481135581331 is a deficient number, since it is larger than the sum of its proper divisors (332733464666733).

512481135581331 is a wasteful number, since it uses less digits than its factorization.

512481135581331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1593253580 (or 1593253563 counting only the distinct ones).

The product of its digits is 1728000, while the sum is 51.

The spelling of 512481135581331 in words is "five hundred twelve trillion, four hundred eighty-one billion, one hundred thirty-five million, five hundred eighty-one thousand, three hundred thirty-one".