671075028432 has 60 divisors (see below), whose sum is σ = 1878905202564. Its totient is φ = 223593154560.

The previous prime is 671075028431. The next prime is 671075028443. The reversal of 671075028432 is 234820570176.

671075028432 is a `hidden beast` number, since 6 + 7 + 107 + 502 + 8 + 4 + 32 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 643659616656 + 27415411776 = 802284^2 + 165576^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671075028431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 697819 + ... + 1352442.

Almost surely, 2^671075028432 is an apocalyptic number.

It is an amenable number.

671075028432 is an abundant number, since it is smaller than the sum of its proper divisors (1207830174132).

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

671075028432 is a wasteful number, since it uses less digits than its factorization.

671075028432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2052548 (or 2052539 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 45.

The spelling of 671075028432 in words is "six hundred seventy-one billion, seventy-five million, twenty-eight thousand, four hundred thirty-two".