820058049659 has 4 divisors (see below), whose sum is σ = 820065621216. Its totient is φ = 820050478104.

The previous prime is 820058049647. The next prime is 820058049667. The reversal of 820058049659 is 956940850028.

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 820058049659 - 2⁸ = 820058049403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (820058049959) 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, 3620924 + ... + 3840729.

It is an arithmetic number, because the mean of its divisors is an integer number (205016405304).

Almost surely, 2^820058049659 is an apocalyptic number.

820058049659 is a deficient number, since it is larger than the sum of its proper divisors (7571557).

820058049659 is a wasteful number, since it uses less digits than its factorization.

820058049659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7571556.

The product of its (nonzero) digits is 6220800, while the sum is 56.

The spelling of 820058049659 in words is "eight hundred twenty billion, fifty-eight million, forty-nine thousand, six hundred fifty-nine".