6819942045508 has 6 divisors (see below), whose sum is σ = 11934898579646. Its totient is φ = 3409971022752.

The previous prime is 6819942045493. The next prime is 6819942045541. The reversal of 6819942045508 is 8055402499186.

It can be written as a sum of positive squares in only one way, i.e., 6769977278724 + 49964766784 = 2601918^2 + 223528^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 852492755685 + ... + 852492755692.

Almost surely, 2^{6819942045508} is an apocalyptic number.

It is an amenable number.

6819942045508 is a deficient number, since it is larger than the sum of its proper divisors (5114956534138).

6819942045508 is a wasteful number, since it uses less digits than its factorization.

6819942045508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1704985511381 (or 1704985511379 counting only the distinct ones).

The product of its (nonzero) digits is 24883200, while the sum is 61.

The spelling of 6819942045508 in words is "six trillion, eight hundred nineteen billion, nine hundred forty-two million, forty-five thousand, five hundred eight".