6815813041232 has 40 divisors (see below), whose sum is σ = 15058012303656. Its totient is φ = 2960715165696.

The previous prime is 6815813041217. The next prime is 6815813041241. The reversal of 6815813041232 is 2321403185186.

It can be written as a sum of positive squares in 4 ways, for example, as 2075282261056 + 4740530780176 = 1440584^2 + 2177276^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 963770933 + ... + 963778004.

Almost surely, 2^{6815813041232} is an apocalyptic number.

It is an amenable number.

6815813041232 is an abundant number, since it is smaller than the sum of its proper divisors (8242199262424).

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

6815813041232 is a wasteful number, since it uses less digits than its factorization.

6815813041232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1927548975 (or 1927548969 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 44.

The spelling of 6815813041232 in words is "six trillion, eight hundred fifteen billion, eight hundred thirteen million, forty-one thousand, two hundred thirty-two".