828021850655 has 8 divisors (see below), whose sum is σ = 995263170432. Its totient is φ = 661326180768.

The previous prime is 828021850637. The next prime is 828021850673. The reversal of 828021850655 is 556058120828.

It is an interprime number because it is at equal distance from previous prime (828021850637) and next prime (828021850673).

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

It is a cyclic number.

It is not a de Polignac number, because 828021850655 - 2⁸ = 828021850399 is a prime.

It is a super-2 number, since 2×828021850655² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136409132 + ... + 136415201.

It is an arithmetic number, because the mean of its divisors is an integer number (124407896304).

Almost surely, 2^828021850655 is an apocalyptic number.

828021850655 is a deficient number, since it is larger than the sum of its proper divisors (167241319777).

828021850655 is a wasteful number, since it uses less digits than its factorization.

828021850655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272824945.

The product of its (nonzero) digits is 1536000, while the sum is 50.

The spelling of 828021850655 in words is "eight hundred twenty-eight billion, twenty-one million, eight hundred fifty thousand, six hundred fifty-five".