399285377485 has 16 divisors (see below), whose sum is σ = 481770789120. Its totient is φ = 317679544000.

The previous prime is 399285377483. The next prime is 399285377501. The reversal of 399285377485 is 584773582993.

It is not a de Polignac number, because 399285377485 - 2¹ = 399285377483 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399285377483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 707610 + ... + 1139860.

It is an arithmetic number, because the mean of its divisors is an integer number (30110674320).

Almost surely, 2^399285377485 is an apocalyptic number.

It is an amenable number.

399285377485 is a deficient number, since it is larger than the sum of its proper divisors (82485411635).

399285377485 is a wasteful number, since it uses less digits than its factorization.

399285377485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433268.

The product of its digits is 457228800, while the sum is 70.

The spelling of 399285377485 in words is "three hundred ninety-nine billion, two hundred eighty-five million, three hundred seventy-seven thousand, four hundred eighty-five".