395400818987 has 8 divisors (see below), whose sum is σ = 406137297216. Its totient is φ = 384806545992.

The previous prime is 395400818899. The next prime is 395400819013. The reversal of 395400818987 is 789818004593.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 395400818987 - 2¹⁰ = 395400817963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (395400818387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35545673 + ... + 35556794.

It is an arithmetic number, because the mean of its divisors is an integer number (50767162152).

Almost surely, 2^395400818987 is an apocalyptic number.

395400818987 is a deficient number, since it is larger than the sum of its proper divisors (10736478229).

395400818987 is an equidigital number, since it uses as much as digits as its factorization.

395400818987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71102617.

The product of its (nonzero) digits is 17418240, while the sum is 62.

The spelling of 395400818987 in words is "three hundred ninety-five billion, four hundred million, eight hundred eighteen thousand, nine hundred eighty-seven".