3405655993818 has 64 divisors (see below), whose sum is σ = 7496259724800. Its totient is φ = 1025137451520.

The previous prime is 3405655993807. The next prime is 3405655993819. The reversal of 3405655993818 is 8183995565043.

It is not an unprimeable number, because it can be changed into a prime (3405655993819) 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 31 ways as a sum of consecutive naturals, for example, 1863603 + ... + 3206918.

It is an arithmetic number, because the mean of its divisors is an integer number (117129058200).

Almost surely, 2^{3405655993818} is an apocalyptic number.

3405655993818 is an abundant number, since it is smaller than the sum of its proper divisors (4090603730982).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3405655993818 is a wasteful number, since it uses less digits than its factorization.

3405655993818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5070727.

The product of its (nonzero) digits is 139968000, while the sum is 66.

The spelling of 3405655993818 in words is "three trillion, four hundred five billion, six hundred fifty-five million, nine hundred ninety-three thousand, eight hundred eighteen".