6491698074816 has 56 divisors (see below), whose sum is σ = 17307065354304. Its totient is φ = 2147381034240.

The previous prime is 6491698074793. The next prime is 6491698074859. The reversal of 6491698074816 is 6184708961946.

It is a Smith number, since the sum of its digits (69) coincides with the sum of the digits of its prime factors.

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, 129024190 + ... + 129074493.

Almost surely, 2^{6491698074816} is an apocalyptic number.

It is an amenable number.

6491698074816 is an abundant number, since it is smaller than the sum of its proper divisors (10815367279488).

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

6491698074816 is a wasteful number, since it uses less digits than its factorization.

6491698074816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258098829 (or 258098819 counting only the distinct ones).

The product of its (nonzero) digits is 125411328, while the sum is 69.

The spelling of 6491698074816 in words is "six trillion, four hundred ninety-one billion, six hundred ninety-eight million, seventy-four thousand, eight hundred sixteen".