82511267415 has 32 divisors (see below), whose sum is σ = 139242862080. Its totient is φ = 41606948736.

The previous prime is 82511267411. The next prime is 82511267441. The reversal of 82511267415 is 51476211528.

It is a happy number.

It is not a de Polignac number, because 82511267415 - 2² = 82511267411 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82511267411) 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 31 ways as a sum of consecutive naturals, for example, 144432 + ... + 431141.

It is an arithmetic number, because the mean of its divisors is an integer number (4351339440).

Almost surely, 2^82511267415 is an apocalyptic number.

82511267415 is a deficient number, since it is larger than the sum of its proper divisors (56731594665).

82511267415 is a wasteful number, since it uses less digits than its factorization.

82511267415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576103.

The product of its digits is 134400, while the sum is 42.

The spelling of 82511267415 in words is "eighty-two billion, five hundred eleven million, two hundred sixty-seven thousand, four hundred fifteen".