827954821660 has 48 divisors (see below), whose sum is σ = 1754956135296. Its totient is φ = 328089388032.

The previous prime is 827954821619. The next prime is 827954821709. The reversal of 827954821660 is 66128459728.

It is a junction number, because it is equal to n+sod(n) for n = 827954821595 and 827954821604.

It is a congruent 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, 4550557 + ... + 4729003.

It is an arithmetic number, because the mean of its divisors is an integer number (36561586152).

Almost surely, 2^827954821660 is an apocalyptic number.

It is an amenable number.

827954821660 is an abundant number, since it is smaller than the sum of its proper divisors (927001313636).

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

827954821660 is a wasteful number, since it uses less digits than its factorization.

827954821660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180622 (or 180620 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 58.

The spelling of 827954821660 in words is "eight hundred twenty-seven billion, nine hundred fifty-four million, eight hundred twenty-one thousand, six hundred sixty".