6767998814690 has 48 divisors (see below), whose sum is σ = 12909550558968. Its totient is φ = 2554022515968.

The previous prime is 6767998814639. The next prime is 6767998814719. The reversal of 6767998814690 is 964188997676.

It can be written as a sum of positive squares in 4 ways, for example, as 3893309083609 + 2874689731081 = 1973147^2 + 1695491^2 .

It is a super-2 number, since 2×6767998814690² (a number of 26 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8376809 + ... + 9149148.

Almost surely, 2^{6767998814690} is an apocalyptic number.

6767998814690 is a deficient number, since it is larger than the sum of its proper divisors (6141551744278).

6767998814690 is a wasteful number, since it uses less digits than its factorization.

6767998814690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17526083 (or 17526060 counting only the distinct ones).

The product of its (nonzero) digits is 1975228416, while the sum is 80.

The spelling of 6767998814690 in words is "six trillion, seven hundred sixty-seven billion, nine hundred ninety-eight million, eight hundred fourteen thousand, six hundred ninety".