816811013411 has 4 divisors (see below), whose sum is σ = 820316640312. Its totient is φ = 813305386512.

The previous prime is 816811013387. The next prime is 816811013449. The reversal of 816811013411 is 114310118618.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 816811013411 - 2³⁸ = 541933106467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (816811012411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1752813101 + ... + 1752813566.

It is an arithmetic number, because the mean of its divisors is an integer number (205079160078).

Almost surely, 2^816811013411 is an apocalyptic number.

816811013411 is a deficient number, since it is larger than the sum of its proper divisors (3505626901).

816811013411 is a wasteful number, since it uses less digits than its factorization.

816811013411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3505626900.

The product of its (nonzero) digits is 4608, while the sum is 35.

The spelling of 816811013411 in words is "eight hundred sixteen billion, eight hundred eleven million, thirteen thousand, four hundred eleven".