405059307861 has 16 divisors (see below), whose sum is σ = 581791769216. Its totient is φ = 249195203136.

The previous prime is 405059307859. The next prime is 405059307871. The reversal of 405059307861 is 168703950504.

It is not a de Polignac number, because 405059307861 - 2¹ = 405059307859 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 405059307861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405059307871) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1364530 + ... + 1634643.

It is an arithmetic number, because the mean of its divisors is an integer number (36361985576).

Almost surely, 2^405059307861 is an apocalyptic number.

It is an amenable number.

405059307861 is a deficient number, since it is larger than the sum of its proper divisors (176732461355).

405059307861 is a wasteful number, since it uses less digits than its factorization.

405059307861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3002652.

The product of its (nonzero) digits is 907200, while the sum is 48.

The spelling of 405059307861 in words is "four hundred five billion, fifty-nine million, three hundred seven thousand, eight hundred sixty-one".