671208012 has 48 divisors (see below), whose sum is σ = 1741699680. Its totient is φ = 223539264.

The previous prime is 671207983. The next prime is 671208019. The reversal of 671208012 is 210802176.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (671208019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 172278 + ... + 176130.

It is an arithmetic number, because the mean of its divisors is an integer number (36285410).

Almost surely, 2^671208012 is an apocalyptic number.

It is an amenable number.

671208012 is an abundant number, since it is smaller than the sum of its proper divisors (1070491668).

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

671208012 is a wasteful number, since it uses less digits than its factorization.

671208012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5479 (or 5471 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 671208012 is about 25907.6824899488. The cubic root of 671208012 is about 875.5595928474.

The spelling of 671208012 in words is "six hundred seventy-one million, two hundred eight thousand, twelve".