40405385895 has 32 divisors (see below), whose sum is σ = 76267499520. Its totient is φ = 17875192320.

The previous prime is 40405385879. The next prime is 40405385941. The reversal of 40405385895 is 59858350404.

It is not a de Polignac number, because 40405385895 - 2⁴ = 40405385879 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6203410 + ... + 6209919.

It is an arithmetic number, because the mean of its divisors is an integer number (2383359360).

Almost surely, 2^40405385895 is an apocalyptic number.

40405385895 is a deficient number, since it is larger than the sum of its proper divisors (35862113625).

40405385895 is a wasteful number, since it uses less digits than its factorization.

40405385895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12413375.

The product of its (nonzero) digits is 3456000, while the sum is 51.

The spelling of 40405385895 in words is "forty billion, four hundred five million, three hundred eighty-five thousand, eight hundred ninety-five".