1690085840709 has 16 divisors (see below), whose sum is σ = 2579001319040. Its totient is φ = 964401180480.

The previous prime is 1690085840701. The next prime is 1690085840731. The reversal of 1690085840709 is 9070485800961.

It is not a de Polignac number, because 1690085840709 - 2³ = 1690085840701 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 (1690085840701) 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, 56741302 + ... + 56771079.

It is an arithmetic number, because the mean of its divisors is an integer number (161187582440).

Almost surely, 2^{1690085840709} is an apocalyptic number.

It is an amenable number.

1690085840709 is a deficient number, since it is larger than the sum of its proper divisors (888915478331).

1690085840709 is a wasteful number, since it uses less digits than its factorization.

1690085840709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113513100.

The product of its (nonzero) digits is 4354560, while the sum is 57.

The spelling of 1690085840709 in words is "one trillion, six hundred ninety billion, eighty-five million, eight hundred forty thousand, seven hundred nine".