40561586465 has 8 divisors (see below), whose sum is σ = 48717253248. Its totient is φ = 32420369520.

The previous prime is 40561586459. The next prime is 40561586473. The reversal of 40561586465 is 56468516504.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40561586465 - 2⁸ = 40561586209 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3606281 + ... + 3617510.

It is an arithmetic number, because the mean of its divisors is an integer number (6089656656).

Almost surely, 2^40561586465 is an apocalyptic number.

It is an amenable number.

40561586465 is a deficient number, since it is larger than the sum of its proper divisors (8155666783).

40561586465 is a wasteful number, since it uses less digits than its factorization.

40561586465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7224919.

The product of its (nonzero) digits is 3456000, while the sum is 50.

The spelling of 40561586465 in words is "forty billion, five hundred sixty-one million, five hundred eighty-six thousand, four hundred sixty-five".