671530783674 has 32 divisors (see below), whose sum is σ = 1358721786240. Its totient is φ = 221244595712.

The previous prime is 671530783661. The next prime is 671530783681. The reversal of 671530783674 is 476387035176.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1136067 + ... + 1622870.

It is an arithmetic number, because the mean of its divisors is an integer number (42460055820).

Almost surely, 2^671530783674 is an apocalyptic number.

671530783674 is an abundant number, since it is smaller than the sum of its proper divisors (687191002566).

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

671530783674 is a wasteful number, since it uses less digits than its factorization.

671530783674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2759414.

The product of its (nonzero) digits is 17781120, while the sum is 57.

The spelling of 671530783674 in words is "six hundred seventy-one billion, five hundred thirty million, seven hundred eighty-three thousand, six hundred seventy-four".