671008477536 has 288 divisors, whose sum is σ = 2062036896192. Its totient is φ = 206460334080.

The previous prime is 671008477511. The next prime is 671008477603. The reversal of 671008477536 is 635774800176.

671008477536 is a `hidden beast` number, since 67 + 1 + 0 + 0 + 8 + 47 + 7 + 536 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21399726 + ... + 21431058.

It is an arithmetic number, because the mean of its divisors is an integer number (7159850334).

Almost surely, 2^671008477536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 671008477536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1031018448096).

671008477536 is an abundant number, since it is smaller than the sum of its proper divisors (1391028418656).

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

671008477536 is a wasteful number, since it uses less digits than its factorization.

671008477536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31486 (or 31475 counting only the distinct ones).

The product of its (nonzero) digits is 5927040, while the sum is 54.

The spelling of 671008477536 in words is "six hundred seventy-one billion, eight million, four hundred seventy-seven thousand, five hundred thirty-six".