1678617440484 has 24 divisors (see below), whose sum is σ = 4022632786368. Its totient is φ = 544416467040.

The previous prime is 1678617440473. The next prime is 1678617440497. The reversal of 1678617440484 is 4840447168761.

It is a super-2 number, since 2×1678617440484² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1890334512 + ... + 1890335399.

It is an arithmetic number, because the mean of its divisors is an integer number (167609699432).

Almost surely, 2^{1678617440484} is an apocalyptic number.

It is an amenable number.

1678617440484 is an abundant number, since it is smaller than the sum of its proper divisors (2344015345884).

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

1678617440484 is a wasteful number, since it uses less digits than its factorization.

1678617440484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3780669955 (or 3780669953 counting only the distinct ones).

The product of its (nonzero) digits is 28901376, while the sum is 60.

The spelling of 1678617440484 in words is "one trillion, six hundred seventy-eight billion, six hundred seventeen million, four hundred forty thousand, four hundred eighty-four".