3279979920393 has 24 divisors (see below), whose sum is σ = 5171781494880. Its totient is φ = 1986586508160.

The previous prime is 3279979920379. The next prime is 3279979920499. The reversal of 3279979920393 is 3930299799723.

3279979920393 is a `hidden beast` number, since 327 + 9 + 9 + 7 + 9 + 9 + 203 + 93 = 666.

It is not a de Polignac number, because 3279979920393 - 2⁸ = 3279979920137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3279979920313) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10513063 + ... + 10820556.

It is an arithmetic number, because the mean of its divisors is an integer number (215490895620).

Almost surely, 2^{3279979920393} is an apocalyptic number.

3279979920393 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

3279979920393 is a deficient number, since it is larger than the sum of its proper divisors (1891801574487).

3279979920393 is a wasteful number, since it uses less digits than its factorization.

3279979920393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21335189 (or 21335186 counting only the distinct ones).

The product of its (nonzero) digits is 312487308, while the sum is 72.

The spelling of 3279979920393 in words is "three trillion, two hundred seventy-nine billion, nine hundred seventy-nine million, nine hundred twenty thousand, three hundred ninety-three".