40455454404405 has 32 divisors (see below), whose sum is σ = 65017959039360. Its totient is φ = 21479850743040.

The previous prime is 40455454404377. The next prime is 40455454404671. The reversal of 40455454404405 is 50440445455404.

It is not a de Polignac number, because 40455454404405 - 2¹⁸ = 40455454142261 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, 33666790 + ... + 34847720.

It is an arithmetic number, because the mean of its divisors is an integer number (2031811219980).

Almost surely, 2^{40455454404405} is an apocalyptic number.

It is an amenable number.

40455454404405 is a deficient number, since it is larger than the sum of its proper divisors (24562504634955).

40455454404405 is a wasteful number, since it uses less digits than its factorization.

40455454404405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1191141.

The product of its (nonzero) digits is 10240000, while the sum is 48.

Adding to 40455454404405 its reverse (50440445455404), we get a palindrome (90895899859809).

The spelling of 40455454404405 in words is "forty trillion, four hundred fifty-five billion, four hundred fifty-four million, four hundred four thousand, four hundred five".