40006064440687 has 2 divisors, whose sum is σ = 40006064440688. Its totient is φ = 40006064440686.

The previous prime is 40006064440621. The next prime is 40006064440729. The reversal of 40006064440687 is 78604446060004.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40006064440687 - 2³⁹ = 39456308626799 is a prime.

It is a super-2 number, since 2×40006064440687² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40006064440687.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40006064440187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20003032220343 + 20003032220344.

It is an arithmetic number, because the mean of its divisors is an integer number (20003032220344).

Almost surely, 2^{40006064440687} is an apocalyptic number.

40006064440687 is a deficient number, since it is larger than the sum of its proper divisors (1).

40006064440687 is an equidigital number, since it uses as much as digits as its factorization.

40006064440687 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3096576, while the sum is 49.

The spelling of 40006064440687 in words is "forty trillion, six billion, sixty-four million, four hundred forty thousand, six hundred eighty-seven".