399486684993 has 8 divisors (see below), whose sum is σ = 581071541856. Its totient is φ = 242113142400.

The previous prime is 399486684991. The next prime is 399486684997.

399486684993 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 399486684993 - 2¹ = 399486684991 is a prime.

It is a super-2 number, since 2×399486684993² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (399486684991) 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, 6052828528 + ... + 6052828593.

It is an arithmetic number, because the mean of its divisors is an integer number (72633942732).

Almost surely, 2^399486684993 is an apocalyptic number.

399486684993 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

399486684993 is a deficient number, since it is larger than the sum of its proper divisors (181584856863).

399486684993 is a wasteful number, since it uses less digits than its factorization.

399486684993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12105657135.

The product of its digits is 2176782336, while the sum is 78.

The spelling of 399486684993 in words is "three hundred ninety-nine billion, four hundred eighty-six million, six hundred eighty-four thousand, nine hundred ninety-three".