671021402382 has 12 divisors (see below), whose sum is σ = 1453879705200. Its totient is φ = 223673800788.

The previous prime is 671021402377. The next prime is 671021402407. The reversal of 671021402382 is 283204120176.

It is a happy number.

671021402382 is a `hidden beast` number, since 67 + 1 + 0 + 214 + 0 + 2 + 382 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18639483382 + ... + 18639483417.

It is an arithmetic number, because the mean of its divisors is an integer number (121156642100).

Almost surely, 2^671021402382 is an apocalyptic number.

671021402382 is an abundant number, since it is smaller than the sum of its proper divisors (782858302818).

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

671021402382 is a wasteful number, since it uses less digits than its factorization.

671021402382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37278966807 (or 37278966804 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The spelling of 671021402382 in words is "six hundred seventy-one billion, twenty-one million, four hundred two thousand, three hundred eighty-two".