1648680077189 has 16 divisors (see below), whose sum is σ = 1687216230000. Its totient is φ = 1610518571520.

The previous prime is 1648680077171. The next prime is 1648680077237. The reversal of 1648680077189 is 9817700868461.

It can be written as a sum of positive squares in 8 ways, for example, as 466639272100 + 1182040805089 = 683110^2 + 1087217^2 .

It is a cyclic number.

It is not a de Polignac number, because 1648680077189 - 2²⁸ = 1648411641733 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 (1648680077129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90235547 + ... + 90253815.

It is an arithmetic number, because the mean of its divisors is an integer number (105451014375).

Almost surely, 2^{1648680077189} is an apocalyptic number.

It is an amenable number.

1648680077189 is a deficient number, since it is larger than the sum of its proper divisors (38536152811).

1648680077189 is a wasteful number, since it uses less digits than its factorization.

1648680077189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28408.

The product of its (nonzero) digits is 32514048, while the sum is 65.

The spelling of 1648680077189 in words is "one trillion, six hundred forty-eight billion, six hundred eighty million, seventy-seven thousand, one hundred eighty-nine".