40428326065 has 32 divisors (see below), whose sum is σ = 52224652800. Its totient is φ = 29950352640.

The previous prime is 40428326041. The next prime is 40428326089. The reversal of 40428326065 is 56062382404.

It is an interprime number because it is at equal distance from previous prime (40428326041) and next prime (40428326089).

It is not a de Polignac number, because 40428326065 - 2¹⁷ = 40428194993 is a prime.

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 31 ways as a sum of consecutive naturals, for example, 1349671 + ... + 1379299.

It is an arithmetic number, because the mean of its divisors is an integer number (1632020400).

Almost surely, 2^40428326065 is an apocalyptic number.

It is an amenable number.

40428326065 is a deficient number, since it is larger than the sum of its proper divisors (11796326735).

40428326065 is a wasteful number, since it uses less digits than its factorization.

40428326065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29977.

The product of its (nonzero) digits is 276480, while the sum is 40.

The spelling of 40428326065 in words is "forty billion, four hundred twenty-eight million, three hundred twenty-six thousand, sixty-five".