1693826763841 has 3 divisors (see below), whose sum is σ = 1693828065313. Its totient is φ = 1693825462370.

The previous prime is 1693826763821. The next prime is 1693826763917. The reversal of 1693826763841 is 1483676283961.

The square root of 1693826763841 is 1301471.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 1693826763841 - 2⁵ = 1693826763809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1693826763821) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 650736 + ... + 1952206.

Almost surely, 2^{1693826763841} is an apocalyptic number.

1693826763841 is the 1301471-st square number.

1693826763841 is the 650736-th centered octagonal number.

It is an amenable number.

1693826763841 is a deficient number, since it is larger than the sum of its proper divisors (1301472).

1693826763841 is an frugal number, since it uses more digits than its factorization.

1693826763841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2602942 (or 1301471 counting only the distinct ones).

The product of its digits is 62705664, while the sum is 64.

Multiplying 1693826763841 by its sum of digits (64), we get a square (108404912885824 = 10411768²).

The spelling of 1693826763841 in words is "one trillion, six hundred ninety-three billion, eight hundred twenty-six million, seven hundred sixty-three thousand, eight hundred forty-one".