802827664621 has 8 divisors (see below), whose sum is σ = 805981571640. Its totient is φ = 799673991168.

The previous prime is 802827664567. The next prime is 802827664729. The reversal of 802827664621 is 126466728208.

It can be written as a sum of positive squares in 4 ways, for example, as 282970802500 + 519856862121 = 531950^2 + 721011^2 .

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 802827664621 - 2¹¹ = 802827662573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (802827664021) 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, 10707555 + ... + 10782271.

It is an arithmetic number, because the mean of its divisors is an integer number (100747696455).

Almost surely, 2^802827664621 is an apocalyptic number.

It is an amenable number.

802827664621 is a deficient number, since it is larger than the sum of its proper divisors (3153907019).

802827664621 is a wasteful number, since it uses less digits than its factorization.

802827664621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116783.

The product of its (nonzero) digits is 3096576, while the sum is 52.

The spelling of 802827664621 in words is "eight hundred two billion, eight hundred twenty-seven million, six hundred sixty-four thousand, six hundred twenty-one".