82145840674 has 8 divisors (see below), whose sum is σ = 123499442880. Its totient is φ = 40979359716.

The previous prime is 82145840663. The next prime is 82145840687. The reversal of 82145840674 is 47604854128.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46779214 + ... + 46780969.

It is an arithmetic number, because the mean of its divisors is an integer number (15437430360).

Almost surely, 2^82145840674 is an apocalyptic number.

82145840674 is a deficient number, since it is larger than the sum of its proper divisors (41353602206).

82145840674 is a wasteful number, since it uses less digits than its factorization.

82145840674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93560624.

The product of its (nonzero) digits is 1720320, while the sum is 49.

The spelling of 82145840674 in words is "eighty-two billion, one hundred forty-five million, eight hundred forty thousand, six hundred seventy-four".