40348766585 has 16 divisors (see below), whose sum is σ = 49789703376. Its totient is φ = 31367086848.

The previous prime is 40348766539. The next prime is 40348766609. The reversal of 40348766585 is 58566784304.

It can be written as a sum of positive squares in 8 ways, for example, as 6169631209 + 34179135376 = 78547^2 + 184876^2 .

It is not a de Polignac number, because 40348766585 - 2²⁶ = 40281657721 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40348766585.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10619 + ... + 284271.

It is an arithmetic number, because the mean of its divisors is an integer number (3111856461).

Almost surely, 2^40348766585 is an apocalyptic number.

It is an amenable number.

40348766585 is a deficient number, since it is larger than the sum of its proper divisors (9440936791).

40348766585 is a wasteful number, since it uses less digits than its factorization.

40348766585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274492.

The product of its (nonzero) digits is 19353600, while the sum is 56.

The spelling of 40348766585 in words is "forty billion, three hundred forty-eight million, seven hundred sixty-six thousand, five hundred eighty-five".