40465495997 has 4 divisors (see below), whose sum is σ = 41452459356. Its totient is φ = 39478532640.

The previous prime is 40465495943. The next prime is 40465496003. The reversal of 40465495997 is 79959456404.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2360113561 + 38105382436 = 48581^2 + 195206^2 .

It is not a de Polignac number, because 40465495997 - 2⁶ = 40465495933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40465495297) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 493481618 + ... + 493481699.

It is an arithmetic number, because the mean of its divisors is an integer number (10363114839).

Almost surely, 2^40465495997 is an apocalyptic number.

It is an amenable number.

40465495997 is a deficient number, since it is larger than the sum of its proper divisors (986963359).

40465495997 is an equidigital number, since it uses as much as digits as its factorization.

40465495997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 986963358.

The product of its (nonzero) digits is 48988800, while the sum is 62.

The spelling of 40465495997 in words is "forty billion, four hundred sixty-five million, four hundred ninety-five thousand, nine hundred ninety-seven".