828665964505 has 8 divisors (see below), whose sum is σ = 994404083400. Its totient is φ = 662929487616.

The previous prime is 828665964487. The next prime is 828665964509. The reversal of 828665964505 is 505469566828.

828665964505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 146594797129 + 682071167376 = 382877^2 + 825876^2 .

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 828665964505 - 2⁵ = 828665964473 is a prime.

It is a super-3 number, since 3×828665964505³ (a number of 37 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (828665964509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1557451 + ... + 2020639.

It is an arithmetic number, because the mean of its divisors is an integer number (124300510425).

Almost surely, 2^828665964505 is an apocalyptic number.

It is an amenable number.

828665964505 is a deficient number, since it is larger than the sum of its proper divisors (165738118895).

828665964505 is a wasteful number, since it uses less digits than its factorization.

828665964505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821003.

The product of its (nonzero) digits is 124416000, while the sum is 64.

The spelling of 828665964505 in words is "eight hundred twenty-eight billion, six hundred sixty-five million, nine hundred sixty-four thousand, five hundred five".