821483036874 has 16 divisors (see below), whose sum is σ = 1825517859840. Its totient is φ = 273827678940.

The previous prime is 821483036851. The next prime is 821483036923. The reversal of 821483036874 is 478630384128.

821483036874 is a `hidden beast` number, since 82 + 1 + 483 + 0 + 3 + 6 + 87 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 15212648831 = 821483036874 / (8 + 2 + 1 + 4 + 8 + 3 + 0 + 3 + 6 + 8 + 7 + 4).

It is a self number, because there is not a number n which added to its sum of digits gives 821483036874.

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, 7606324362 + ... + 7606324469.

It is an arithmetic number, because the mean of its divisors is an integer number (114094866240).

Almost surely, 2^821483036874 is an apocalyptic number.

821483036874 is an abundant number, since it is smaller than the sum of its proper divisors (1004034822966).

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

821483036874 is a wasteful number, since it uses less digits than its factorization.

821483036874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15212648842 (or 15212648836 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 54.

The spelling of 821483036874 in words is "eight hundred twenty-one billion, four hundred eighty-three million, thirty-six thousand, eight hundred seventy-four".