399386708495 has 8 divisors (see below), whose sum is σ = 479267921184. Its totient is φ = 319506786144.

The previous prime is 399386708467. The next prime is 399386708519. The reversal of 399386708495 is 594807683993.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-399386708495 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 596342 + ... + 1074428.

It is an arithmetic number, because the mean of its divisors is an integer number (59908490148).

Almost surely, 2^399386708495 is an apocalyptic number.

399386708495 is a deficient number, since it is larger than the sum of its proper divisors (79881212689).

399386708495 is a wasteful number, since it uses less digits than its factorization.

399386708495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645169.

The product of its (nonzero) digits is 352719360, while the sum is 71.

The spelling of 399386708495 in words is "three hundred ninety-nine billion, three hundred eighty-six million, seven hundred eight thousand, four hundred ninety-five".