80844284405 has 16 divisors (see below), whose sum is σ = 100912921200. Its totient is φ = 62100218880.

The previous prime is 80844284393. The next prime is 80844284429. The reversal of 80844284405 is 50448244808.

It can be written as a sum of positive squares in 8 ways, for example, as 1036904401 + 79807380004 = 32201^2 + 282502^2 .

It is not a de Polignac number, because 80844284405 - 2⁶ = 80844284341 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80844284405.

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, 1513940 + ... + 1566429.

It is an arithmetic number, because the mean of its divisors is an integer number (6307057575).

Almost surely, 2^80844284405 is an apocalyptic number.

It is an amenable number.

80844284405 is a deficient number, since it is larger than the sum of its proper divisors (20068636795).

80844284405 is a wasteful number, since it uses less digits than its factorization.

80844284405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3080584.

The product of its (nonzero) digits is 1310720, while the sum is 47.

The spelling of 80844284405 in words is "eighty billion, eight hundred forty-four million, two hundred eighty-four thousand, four hundred five".