671419984650240 has 2688 divisors, whose sum is σ = 2803854794250240. Its totient is φ = 133553291526144.

The previous prime is 671419984650227. The next prime is 671419984650293. The reversal of 671419984650240 is 42056489914176.

It is a tau number, because it is divible by the number of its divisors (2688).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 513710775667 + ... + 513710776973.

Almost surely, 2^{671419984650240} is an apocalyptic number.

671419984650240 is a gapful number since it is divisible by the number (60) 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 671419984650240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1401927397125120).

671419984650240 is an abundant number, since it is smaller than the sum of its proper divisors (2132434809600000).

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

671419984650240 is a wasteful number, since it uses less digits than its factorization.

671419984650240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1470 (or 1403 counting only the distinct ones).

The product of its (nonzero) digits is 104509440, while the sum is 66.

The spelling of 671419984650240 in words is "six hundred seventy-one trillion, four hundred nineteen billion, nine hundred eighty-four million, six hundred fifty thousand, two hundred forty".