40006064440625 has 24 divisors (see below), whose sum is σ = 50005266692472. Its totient is φ = 32004284080000.

The previous prime is 40006064440621. The next prime is 40006064440687. The reversal of 40006064440625 is 52604446060004.

It can be written as a sum of positive squares in 12 ways, for example, as 39613517081329 + 392547359296 = 6293927^2 + 626536^2 .

It is not a de Polignac number, because 40006064440625 - 2² = 40006064440621 is a prime.

It is a super-3 number, since 3×40006064440625³ (a number of 42 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40006064440621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 326804429 + ... + 326926821.

It is an arithmetic number, because the mean of its divisors is an integer number (2083552778853).

Almost surely, 2^{40006064440625} is an apocalyptic number.

It is an amenable number.

40006064440625 is a deficient number, since it is larger than the sum of its proper divisors (9999202251847).

40006064440625 is an equidigital number, since it uses as much as digits as its factorization.

40006064440625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227015 (or 226995 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 41.

The spelling of 40006064440625 in words is "forty trillion, six billion, sixty-four million, four hundred forty thousand, six hundred twenty-five".