805828257554 has 16 divisors (see below), whose sum is σ = 1261702319040. Its totient is φ = 385272093360.

The previous prime is 805828257547. The next prime is 805828257629. The reversal of 805828257554 is 455752828508.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 805828257493 and 805828257502.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2674292 + ... + 2960319.

It is an arithmetic number, because the mean of its divisors is an integer number (78856394940).

Almost surely, 2^805828257554 is an apocalyptic number.

805828257554 is a deficient number, since it is larger than the sum of its proper divisors (455874061486).

805828257554 is a wasteful number, since it uses less digits than its factorization.

805828257554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5637745.

The product of its (nonzero) digits is 35840000, while the sum is 59.

The spelling of 805828257554 in words is "eight hundred five billion, eight hundred twenty-eight million, two hundred fifty-seven thousand, five hundred fifty-four".