6781100767137 has 24 divisors (see below), whose sum is σ = 9942262534880. Its totient is φ = 4452746696640.

The previous prime is 6781100767121. The next prime is 6781100767171. The reversal of 6781100767137 is 7317670011876.

It is not a de Polignac number, because 6781100767137 - 2⁴ = 6781100767121 is a prime.

It is a super-2 number, since 2×6781100767137² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6781100763137) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4620789 + ... + 5908797.

Almost surely, 2^{6781100767137} is an apocalyptic number.

6781100767137 is a gapful number since it is divisible by the number (67) formed by its first and last digit.

It is an amenable number.

6781100767137 is a deficient number, since it is larger than the sum of its proper divisors (3161161767743).

6781100767137 is a wasteful number, since it uses less digits than its factorization.

6781100767137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1296813 (or 1296810 counting only the distinct ones).

The product of its (nonzero) digits is 2074464, while the sum is 54.

The spelling of 6781100767137 in words is "six trillion, seven hundred eighty-one billion, one hundred million, seven hundred sixty-seven thousand, one hundred thirty-seven".