512115482461 has 4 divisors (see below), whose sum is σ = 558671435424. Its totient is φ = 465559529500.

The previous prime is 512115482441. The next prime is 512115482491. The reversal of 512115482461 is 164284511215.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 512115482461 - 2²³ = 512107093853 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 (512115482441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23277976465 + ... + 23277976486.

It is an arithmetic number, because the mean of its divisors is an integer number (139667858856).

Almost surely, 2^512115482461 is an apocalyptic number.

It is an amenable number.

512115482461 is a deficient number, since it is larger than the sum of its proper divisors (46555952963).

512115482461 is a wasteful number, since it uses less digits than its factorization.

512115482461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46555952962.

The product of its digits is 76800, while the sum is 40.

Adding to 512115482461 its reverse (164284511215), we get a palindrome (676399993676).

The spelling of 512115482461 in words is "five hundred twelve billion, one hundred fifteen million, four hundred eighty-two thousand, four hundred sixty-one".