440670066787 has 2 divisors, whose sum is σ = 440670066788. Its totient is φ = 440670066786.

The previous prime is 440670066757. The next prime is 440670066791. The reversal of 440670066787 is 787660076044.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-440670066787 is a prime.

It is not a weakly prime, because it can be changed into another prime (440670066757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220335033393 + 220335033394.

It is an arithmetic number, because the mean of its divisors is an integer number (220335033394).

Almost surely, 2^440670066787 is an apocalyptic number.

440670066787 is a deficient number, since it is larger than the sum of its proper divisors (1).

440670066787 is an equidigital number, since it uses as much as digits as its factorization.

440670066787 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9483264, while the sum is 55.

The spelling of 440670066787 in words is "four hundred forty billion, six hundred seventy million, sixty-six thousand, seven hundred eighty-seven".