1678401733332 has 48 divisors (see below), whose sum is σ = 3946569625152. Its totient is φ = 555139703040.

The previous prime is 1678401733303. The next prime is 1678401733339. The reversal of 1678401733332 is 2333371048761.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1678401733339) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17011728 + ... + 17110104.

It is an arithmetic number, because the mean of its divisors is an integer number (82220200524).

Almost surely, 2^{1678401733332} is an apocalyptic number.

1678401733332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1678401733332 is an abundant number, since it is smaller than the sum of its proper divisors (2268167891820).

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

1678401733332 is a wasteful number, since it uses less digits than its factorization.

1678401733332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109368 (or 109366 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 48.

The spelling of 1678401733332 in words is "one trillion, six hundred seventy-eight billion, four hundred one million, seven hundred thirty-three thousand, three hundred thirty-two".