821419049316 has 48 divisors (see below), whose sum is σ = 2006624088000. Its totient is φ = 261179624832.

The previous prime is 821419049299. The next prime is 821419049323. The reversal of 821419049316 is 613940914128.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14190391 + ... + 14248158.

It is an arithmetic number, because the mean of its divisors is an integer number (41804668500).

Almost surely, 2^821419049316 is an apocalyptic number.

It is an amenable number.

821419049316 is an abundant number, since it is smaller than the sum of its proper divisors (1185205038684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

821419049316 is a wasteful number, since it uses less digits than its factorization.

821419049316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28438668 (or 28438666 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 48.

The spelling of 821419049316 in words is "eight hundred twenty-one billion, four hundred nineteen million, forty-nine thousand, three hundred sixteen".