1684676340126 has 72 divisors (see below), whose sum is σ = 3952846919736. Its totient is φ = 518317750080.

The previous prime is 1684676340121. The next prime is 1684676340187. The reversal of 1684676340126 is 6210436764861.

1684676340126 is a `hidden beast` number, since 1 + 68 + 467 + 63 + 40 + 1 + 26 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1684676340121) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 65946916 + ... + 65972456.

It is an arithmetic number, because the mean of its divisors is an integer number (54900651663).

Almost surely, 2^{1684676340126} is an apocalyptic number.

1684676340126 is an abundant number, since it is smaller than the sum of its proper divisors (2268170579610).

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

1684676340126 is a wasteful number, since it uses less digits than its factorization.

1684676340126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47258 (or 47242 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 54.

The spelling of 1684676340126 in words is "one trillion, six hundred eighty-four billion, six hundred seventy-six million, three hundred forty thousand, one hundred twenty-six".