390585250985 has 8 divisors (see below), whose sum is σ = 469958877960. Its totient is φ = 311630482944.

The previous prime is 390585250981. The next prime is 390585251011. The reversal of 390585250985 is 589052585093.

It can be written as a sum of positive squares in 4 ways, for example, as 82672350784 + 307912900201 = 287528^2 + 554899^2 .

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 390585250985 - 2² = 390585250981 is a prime.

It is not an unprimeable number, because it can be changed into a prime (390585250981) 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, 104712680 + ... + 104716409.

It is an arithmetic number, because the mean of its divisors is an integer number (58744859745).

Almost surely, 2^390585250985 is an apocalyptic number.

It is an amenable number.

390585250985 is a deficient number, since it is larger than the sum of its proper divisors (79373626975).

390585250985 is a wasteful number, since it uses less digits than its factorization.

390585250985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209429467.

The product of its (nonzero) digits is 19440000, while the sum is 59.

The spelling of 390585250985 in words is "three hundred ninety billion, five hundred eighty-five million, two hundred fifty thousand, nine hundred eighty-five".