671930001388 has 12 divisors (see below), whose sum is σ = 1176310944760. Its totient is φ = 335841160032.

The previous prime is 671930001371. The next prime is 671930001389. The reversal of 671930001388 is 883100039176.

671930001388 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (671930001389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30947958 + ... + 30969661.

Almost surely, 2^671930001388 is an apocalyptic number.

It is an amenable number.

671930001388 is a deficient number, since it is larger than the sum of its proper divisors (504380943372).

671930001388 is a wasteful number, since it uses less digits than its factorization.

671930001388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61920336 (or 61920334 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 46.

The spelling of 671930001388 in words is "six hundred seventy-one billion, nine hundred thirty million, one thousand, three hundred eighty-eight".