6781458964 has 36 divisors (see below), whose sum is σ = 13885775904. Its totient is φ = 2838728592.

The previous prime is 6781458913. The next prime is 6781458979. The reversal of 6781458964 is 4698541876.

It is a junction number, because it is equal to n+sod(n) for n = 6781458899 and 6781458908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13722 + ... + 117265.

Almost surely, 2^6781458964 is an apocalyptic number.

It is an amenable number.

6781458964 is an abundant number, since it is smaller than the sum of its proper divisors (7104316940).

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

6781458964 is a wasteful number, since it uses less digits than its factorization.

6781458964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131084 (or 131039 counting only the distinct ones).

The product of its digits is 11612160, while the sum is 58.

The square root of 6781458964 is about 82349.6142310333. The cubic root of 6781458964 is about 1892.8130114723.

The spelling of 6781458964 in words is "six billion, seven hundred eighty-one million, four hundred fifty-eight thousand, nine hundred sixty-four".