1690795693636 has 81 divisors (see below), whose sum is σ = 3473351084637. Its totient is φ = 718080985440.

The previous prime is 1690795693547. The next prime is 1690795693733. The reversal of 1690795693636 is 6363965970961.

The square root of 1690795693636 is 1300306.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 225630700036 + 1465164993600 = 475006^2 + 1210440^2 .

It is an unprimeable number.

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 in 26 ways as a sum of consecutive naturals, for example, 2384760850 + ... + 2384761558.

Almost surely, 2^{1690795693636} is an apocalyptic number.

1690795693636 is the 1300306-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1690795693636

1690795693636 is an abundant number, since it is smaller than the sum of its proper divisors (1782555391001).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1690795693636 is an frugal number, since it uses more digits than its factorization.

1690795693636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1698 (or 849 counting only the distinct ones).

The product of its (nonzero) digits is 297606960, while the sum is 70.

The spelling of 1690795693636 in words is "one trillion, six hundred ninety billion, seven hundred ninety-five million, six hundred ninety-three thousand, six hundred thirty-six".