820050478103 has 4 divisors (see below), whose sum is σ = 821876871600. Its totient is φ = 818224084608.

The previous prime is 820050478033. The next prime is 820050478151. The reversal of 820050478103 is 301874050028.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 820050478103 - 2¹⁴ = 820050461719 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 (820050478153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 913196075 + ... + 913196972.

It is an arithmetic number, because the mean of its divisors is an integer number (205469217900).

Almost surely, 2^820050478103 is an apocalyptic number.

820050478103 is a deficient number, since it is larger than the sum of its proper divisors (1826393497).

820050478103 is a wasteful number, since it uses less digits than its factorization.

820050478103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1826393496.

The product of its (nonzero) digits is 53760, while the sum is 38.

The spelling of 820050478103 in words is "eight hundred twenty billion, fifty million, four hundred seventy-eight thousand, one hundred three".