82121804294 has 8 divisors (see below), whose sum is σ = 129666006840. Its totient is φ = 38899802016.

The previous prime is 82121804249. The next prime is 82121804311. The reversal of 82121804294 is 49240812128.

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

It is a congruent number.

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, 1080550019 + ... + 1080550094.

It is an arithmetic number, because the mean of its divisors is an integer number (16208250855).

Almost surely, 2^82121804294 is an apocalyptic number.

82121804294 is a deficient number, since it is larger than the sum of its proper divisors (47544202546).

82121804294 is a wasteful number, since it uses less digits than its factorization.

82121804294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2161100134.

The product of its (nonzero) digits is 73728, while the sum is 41.

The spelling of 82121804294 in words is "eighty-two billion, one hundred twenty-one million, eight hundred four thousand, two hundred ninety-four".