802109838663 has 48 divisors (see below), whose sum is σ = 1341535104000. Its totient is φ = 452325107520.

The previous prime is 802109838617. The next prime is 802109838689. The reversal of 802109838663 is 366838901208.

It is a happy number.

It is not a de Polignac number, because 802109838663 - 2⁶ = 802109838599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (802109838863) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10408333 + ... + 10485113.

It is an arithmetic number, because the mean of its divisors is an integer number (27948648000).

Almost surely, 2^802109838663 is an apocalyptic number.

802109838663 is a deficient number, since it is larger than the sum of its proper divisors (539425265337).

802109838663 is a wasteful number, since it uses less digits than its factorization.

802109838663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78972 (or 78969 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 54.

The spelling of 802109838663 in words is "eight hundred two billion, one hundred nine million, eight hundred thirty-eight thousand, six hundred sixty-three".