40326770065 has 16 divisors (see below), whose sum is σ = 51247751760. Its totient is φ = 30358333440.

The previous prime is 40326770059. The next prime is 40326770069. The reversal of 40326770065 is 56007762304.

40326770065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 1520922001 + 38805848064 = 38999^2 + 196992^2 .

It is not a de Polignac number, because 40326770065 - 2¹⁹ = 40326245777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40326770069) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 481531 + ... + 559039.

It is an arithmetic number, because the mean of its divisors is an integer number (3202984485).

Almost surely, 2^40326770065 is an apocalyptic number.

It is an amenable number.

40326770065 is a deficient number, since it is larger than the sum of its proper divisors (10920981695).

40326770065 is a wasteful number, since it uses less digits than its factorization.

40326770065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83652.

The product of its (nonzero) digits is 211680, while the sum is 40.

The spelling of 40326770065 in words is "forty billion, three hundred twenty-six million, seven hundred seventy thousand, sixty-five".