1678508058612 has 768 divisors, whose sum is σ = 5417769369600. Its totient is φ = 391598592000.

The previous prime is 1678508058587. The next prime is 1678508058613. The reversal of 1678508058612 is 2168508058761.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1678508058613) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 3894450037 + ... + 3894450467.

It is an arithmetic number, because the mean of its divisors is an integer number (7054387200).

Almost surely, 2^{1678508058612} is an apocalyptic number.

1678508058612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1678508058612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2708884684800).

1678508058612 is an abundant number, since it is smaller than the sum of its proper divisors (3739261310988).

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

1678508058612 is a wasteful number, since it uses less digits than its factorization.

1678508058612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668 (or 666 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 57.

The spelling of 1678508058612 in words is "one trillion, six hundred seventy-eight billion, five hundred eight million, fifty-eight thousand, six hundred twelve".