82291389465 has 8 divisors (see below), whose sum is σ = 131666223168. Its totient is φ = 43888741040.

The previous prime is 82291389413. The next prime is 82291389493. The reversal of 82291389465 is 56498319228.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 82291389465 - 2⁸ = 82291389209 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2743046301 + ... + 2743046330.

It is an arithmetic number, because the mean of its divisors is an integer number (16458277896).

Almost surely, 2^82291389465 is an apocalyptic number.

It is an amenable number.

82291389465 is a deficient number, since it is larger than the sum of its proper divisors (49374833703).

82291389465 is a wasteful number, since it uses less digits than its factorization.

82291389465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5486092639.

The product of its digits is 7464960, while the sum is 57.

The spelling of 82291389465 in words is "eighty-two billion, two hundred ninety-one million, three hundred eighty-nine thousand, four hundred sixty-five".