40649235339 has 32 divisors (see below), whose sum is σ = 55085276736. Its totient is φ = 26660874240.

The previous prime is 40649235329. The next prime is 40649235349. The reversal of 40649235339 is 93353294604.

It is an interprime number because it is at equal distance from previous prime (40649235329) and next prime (40649235349).

It is not a de Polignac number, because 40649235339 - 2⁴ = 40649235323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40649235329) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 39812649 + ... + 39813669.

It is an arithmetic number, because the mean of its divisors is an integer number (1721414898).

Almost surely, 2^40649235339 is an apocalyptic number.

40649235339 is a deficient number, since it is larger than the sum of its proper divisors (14436041397).

40649235339 is a wasteful number, since it uses less digits than its factorization.

40649235339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1935.

The product of its (nonzero) digits is 2099520, while the sum is 48.

The spelling of 40649235339 in words is "forty billion, six hundred forty-nine million, two hundred thirty-five thousand, three hundred thirty-nine".