671267381424 has 20 divisors (see below), whose sum is σ = 1734107402136. Its totient is φ = 223755793792.

The previous prime is 671267381399. The next prime is 671267381467. The reversal of 671267381424 is 424183762176.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6992368509 + ... + 6992368604.

Almost surely, 2^671267381424 is an apocalyptic number.

It is an amenable number.

671267381424 is an abundant number, since it is smaller than the sum of its proper divisors (1062840020712).

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

671267381424 is a wasteful number, since it uses less digits than its factorization.

671267381424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13984737124 (or 13984737118 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 51.

The spelling of 671267381424 in words is "six hundred seventy-one billion, two hundred sixty-seven million, three hundred eighty-one thousand, four hundred twenty-four".