3118591781804 has 6 divisors (see below), whose sum is σ = 5457535618164. Its totient is φ = 1559295890900.

The previous prime is 3118591781719. The next prime is 3118591781819. The reversal of 3118591781804 is 4081871958113.

It is a happy number.

3118591781804 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×3118591781804² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3118591781804.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 389823972722 + ... + 389823972729.

It is an arithmetic number, because the mean of its divisors is an integer number (909589269694).

Almost surely, 2^{3118591781804} is an apocalyptic number.

It is an amenable number.

3118591781804 is a deficient number, since it is larger than the sum of its proper divisors (2338943836360).

3118591781804 is a wasteful number, since it uses less digits than its factorization.

3118591781804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 779647945455 (or 779647945453 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 56.

The spelling of 3118591781804 in words is "three trillion, one hundred eighteen billion, five hundred ninety-one million, seven hundred eighty-one thousand, eight hundred four".