3428517815823 has 16 divisors (see below), whose sum is σ = 4677737182976. Its totient is φ = 2232490075200.

The previous prime is 3428517815819. The next prime is 3428517815831. The reversal of 3428517815823 is 3285187158243.

It is not a de Polignac number, because 3428517815823 - 2² = 3428517815819 is a prime.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3428517815803) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10957398 + ... + 11265948.

It is an arithmetic number, because the mean of its divisors is an integer number (292358573936).

Almost surely, 2^{3428517815823} is an apocalyptic number.

3428517815823 is a deficient number, since it is larger than the sum of its proper divisors (1249219367153).

3428517815823 is a wasteful number, since it uses less digits than its factorization.

3428517815823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394734.

The product of its digits is 12902400, while the sum is 57.

The spelling of 3428517815823 in words is "three trillion, four hundred twenty-eight billion, five hundred seventeen million, eight hundred fifteen thousand, eight hundred twenty-three".