805137782428 has 48 divisors (see below), whose sum is σ = 1638657216000. Its totient is φ = 338985046080.

The previous prime is 805137782381. The next prime is 805137782431. The reversal of 805137782428 is 824287731508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2334898 + ... + 2657446.

It is an arithmetic number, because the mean of its divisors is an integer number (34138692000).

Almost surely, 2^805137782428 is an apocalyptic number.

It is an amenable number.

805137782428 is an abundant number, since it is smaller than the sum of its proper divisors (833519433572).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

805137782428 is a wasteful number, since it uses less digits than its factorization.

805137782428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324130 (or 324128 counting only the distinct ones).

The product of its (nonzero) digits is 6021120, while the sum is 55.

The spelling of 805137782428 in words is "eight hundred five billion, one hundred thirty-seven million, seven hundred eighty-two thousand, four hundred twenty-eight".