1684118725696 has 63 divisors (see below), whose sum is σ = 3673602594487. Its totient is φ = 765456602240.

The previous prime is 1684118725691. The next prime is 1684118725741. The reversal of 1684118725696 is 6965278114861.

The square root of 1684118725696 is 1297736.

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

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1684118725691) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 114193395 + ... + 114208141.

Almost surely, 2^{1684118725696} is an apocalyptic number.

1684118725696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1684118725696 is the 1297736-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1684118725696

1684118725696 is an abundant number, since it is smaller than the sum of its proper divisors (1989483868791).

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

1684118725696 is an frugal number, since it uses more digits than its factorization.

1684118725696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29528 (or 14760 counting only the distinct ones).

The product of its digits is 34836480, while the sum is 64.

Multiplying 1684118725696 by its sum of digits (64), we get a square (107783598444544 = 10381888²).

1684118725696 divided by its sum of digits (64) gives a square (26314355089 = 162217²).

The spelling of 1684118725696 in words is "one trillion, six hundred eighty-four billion, one hundred eighteen million, seven hundred twenty-five thousand, six hundred ninety-six".