1680510928477 has 2 divisors, whose sum is σ = 1680510928478. Its totient is φ = 1680510928476.

The previous prime is 1680510928429. The next prime is 1680510928541. The reversal of 1680510928477 is 7748290150861.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1599544502361 + 80966426116 = 1264731^2 + 284546^2 .

It is a cyclic number.

It is not a de Polignac number, because 1680510928477 - 2¹⁵ = 1680510895709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1680510928177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 840255464238 + 840255464239.

It is an arithmetic number, because the mean of its divisors is an integer number (840255464239).

Almost surely, 2^{1680510928477} is an apocalyptic number.

It is an amenable number.

1680510928477 is a deficient number, since it is larger than the sum of its proper divisors (1).

1680510928477 is an equidigital number, since it uses as much as digits as its factorization.

1680510928477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6773760, while the sum is 58.

The spelling of 1680510928477 in words is "one trillion, six hundred eighty billion, five hundred ten million, nine hundred twenty-eight thousand, four hundred seventy-seven".