1677720766117 has 12 divisors (see below), whose sum is σ = 1867449424960. Its totient is φ = 1505894349960.

The previous prime is 1677720766097. The next prime is 1677720766159. The reversal of 1677720766117 is 7116670277761.

It is not a de Polignac number, because 1677720766117 - 2³¹ = 1675573282469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1677720761117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87746523 + ... + 87765640.

Almost surely, 2^{1677720766117} is an apocalyptic number.

It is an amenable number.

1677720766117 is a deficient number, since it is larger than the sum of its proper divisors (189728658843).

1677720766117 is a wasteful number, since it uses less digits than its factorization.

1677720766117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175512264 (or 175512253 counting only the distinct ones).

The product of its (nonzero) digits is 7260624, while the sum is 58.

The spelling of 1677720766117 in words is "one trillion, six hundred seventy-seven billion, seven hundred twenty million, seven hundred sixty-six thousand, one hundred seventeen".