399679274086 has 8 divisors (see below), whose sum is σ = 620191977120. Its totient is φ = 192948615048.

The previous prime is 399679274009. The next prime is 399679274119. The reversal of 399679274086 is 680472976993.

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

It is a super-2 number, since 2×399679274086² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3445510926 + ... + 3445511041.

It is an arithmetic number, because the mean of its divisors is an integer number (77523997140).

Almost surely, 2^399679274086 is an apocalyptic number.

399679274086 is a deficient number, since it is larger than the sum of its proper divisors (220512703034).

399679274086 is a wasteful number, since it uses less digits than its factorization.

399679274086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6891021998.

The product of its (nonzero) digits is 246903552, while the sum is 70.

The spelling of 399679274086 in words is "three hundred ninety-nine billion, six hundred seventy-nine million, two hundred seventy-four thousand, eighty-six".