40805486863805 has 16 divisors (see below), whose sum is σ = 49312621940400. Its totient is φ = 32413852382208.

The previous prime is 40805486863787. The next prime is 40805486863829. The reversal of 40805486863805 is 50836868450804.

It can be written as a sum of positive squares in 8 ways, for example, as 6541287068836 + 34264199794969 = 2557594^2 + 5853563^2 .

It is a cyclic number.

It is not a de Polignac number, because 40805486863805 - 2¹⁴ = 40805486847421 is a prime.

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, 7556282 + ... + 11777451.

It is an arithmetic number, because the mean of its divisors is an integer number (3082038871275).

Almost surely, 2^{40805486863805} is an apocalyptic number.

It is an amenable number.

40805486863805 is a deficient number, since it is larger than the sum of its proper divisors (8507135076595).

40805486863805 is a wasteful number, since it uses less digits than its factorization.

40805486863805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19336720.

The product of its (nonzero) digits is 176947200, while the sum is 65.

The spelling of 40805486863805 in words is "forty trillion, eight hundred five billion, four hundred eighty-six million, eight hundred sixty-three thousand, eight hundred five".