906811406833 has 4 divisors (see below), whose sum is σ = 907689250468. Its totient is φ = 905933563200.

The previous prime is 906811406797. The next prime is 906811406843. The reversal of 906811406833 is 338604118609.

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

It can be written as a sum of positive squares in 2 ways, for example, as 535579539889 + 371231866944 = 731833^2 + 609288^2 .

It is a cyclic number.

It is not a de Polignac number, because 906811406833 - 2³³ = 898221472241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (906811406843) 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, 438920268 + ... + 438922333.

It is an arithmetic number, because the mean of its divisors is an integer number (226922312617).

Almost surely, 2^906811406833 is an apocalyptic number.

It is an amenable number.

906811406833 is a deficient number, since it is larger than the sum of its proper divisors (877843635).

906811406833 is a wasteful number, since it uses less digits than its factorization.

906811406833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 877843634.

The product of its (nonzero) digits is 746496, while the sum is 49.

The spelling of 906811406833 in words is "nine hundred six billion, eight hundred eleven million, four hundred six thousand, eight hundred thirty-three".