82512530461 has 4 divisors (see below), whose sum is σ = 85174225024. Its totient is φ = 79850835900.

The previous prime is 82512530417. The next prime is 82512530479. The reversal of 82512530461 is 16403521528.

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 a de Polignac number, because none of the positive numbers 2^k-82512530461 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 82512530461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82512530411) 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, 1330847235 + ... + 1330847296.

It is an arithmetic number, because the mean of its divisors is an integer number (21293556256).

Almost surely, 2^82512530461 is an apocalyptic number.

It is an amenable number.

82512530461 is a deficient number, since it is larger than the sum of its proper divisors (2661694563).

82512530461 is a wasteful number, since it uses less digits than its factorization.

82512530461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2661694562.

The product of its (nonzero) digits is 57600, while the sum is 37.

The spelling of 82512530461 in words is "eighty-two billion, five hundred twelve million, five hundred thirty thousand, four hundred sixty-one".