1694464644961 has 12 divisors (see below), whose sum is σ = 1897652444436. Its totient is φ = 1511357825120.

The previous prime is 1694464644959. The next prime is 1694464644967.

1694464644961 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 1382637332736 + 311827312225 = 1175856^2 + 558415^2 .

It is not a de Polignac number, because 1694464644961 - 2¹ = 1694464644959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1694464644893 and 1694464644902.

It is not an unprimeable number, because it can be changed into a prime (1694464644967) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 132105286 + ... + 132118111.

It is an arithmetic number, because the mean of its divisors is an integer number (158137703703).

Almost surely, 2^{1694464644961} is an apocalyptic number.

1694464644961 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1694464644961 is a deficient number, since it is larger than the sum of its proper divisors (203187799475).

1694464644961 is a wasteful number, since it uses less digits than its factorization.

1694464644961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264223472 (or 264223461 counting only the distinct ones).

The product of its digits is 107495424, while the sum is 64.

The spelling of 1694464644961 in words is "one trillion, six hundred ninety-four billion, four hundred sixty-four million, six hundred forty-four thousand, nine hundred sixty-one".